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You are 4 weeks pregnant.

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Born & Birth stories

By the end of this week, you will most likely be expecting your period to come. However, if you are pregnant your period will most likely not come. Some women do experience some spotting or even a light period. It is also possible to have your period and still be pregnant! If you do miss your period, you might begin to think about a possible pregnancy! Home pregnancy tests are not as reliable as blood tests at this point. A blood test will detect a positive pregnancy test at this point because the hormone, human Chorionic Gonadotropin (hCG), has been secreted.

At this point in your pregnancy, your growing baby is very small and is about 1 mm in length. One mm is about half of the size of a typed letter `o`. You are still not showing at all and you have not yet gained any weight. Even though you are in the very early stages of your pregnancy, many great changes are occurring. The implanted embryo is embedded deeper in the lining of your uterus and the amniotic cavity is beginning to form. The placenta is also forming and will be delivering oxygen and nutrients to your developing baby. This week the blastocyst begins to transform into an embryo. The embryo will have three different layers with different types of tissue. The inner layer will form the lungs, liver, digestive system and pancreas. The middle layer will become the skeleton, muscles, kidneys, blood vessels and heart. The outer layer will become the skin, hair, lenses of eyes, tooth enamel and the nervous system.

A clear result. If you tried it a few days ago and the result wasn't as convincing as in this picture, try it again now to be sure!

Even though you have not yet gained any weight, you need to be prepared to gain weight during pregnancy. Gaining a healthy amount of weight is crucial for the health of both mother and baby during pregnancy. You can control your weight gain by eating healthy and nutritious meals and snacks. During pregnancy you are eating for two, but that does not mean you have to eat twice as much!

Your body now starts producing a hormone which stops you having your period, and it shows in your urine.

It is now possible for your pregnancy to show up on blood tests, and even home pregnancy tests.

About 1 in 3 women have a light bleeding at this point. This happens before you would expect your period to arrive. Unless accompanied by cramping, backache or increased bleeding, a small amount of blood being discharged should be considered as implantation bleeding which is nothing to be concerned about.

At this point, your baby is still not visible to the naked eye.

See also:
Ovulation Calendar (When can you do a home pregnancy test?)
Home pregnancy tests

Comments on week 4

Comments 1-49 of about 1298 from week 4
3 messages have been added in the last 24 hours.
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pumpkinfairy - 1 days ago
hi ladies, I havent tested yet but will soon. so far lots of cramping like my periods coming but she doesnt show, slight naseau, dizzy, very tired, and nipples feel like theyre on fire, do any of you that had a positive test feel the same way??

redbeamer - 1 days ago
So here I am again... Pg.. I just found out!! Wasn't planned... But will definitely be welcomed with open arms !!!

RJean - 2 days ago
Just found out we are expecting again! I had a miscarriage back in November, so I'm really hoping that this LO sticks around! Congrats to all of the other ladies, I'm excited to spend the next eight months with you!

justonemore - 2 days ago
Just found out that im expecting.... due date is March 30,2015

klawest2 - 6 days ago
Just got a positive pregnancy test on Sunday :) haven't had a period since May... I know I concieved this month though. I think I'm around 4 weeks but won't know for sure until the first ultra sound! This will be my second. I've already been experiencing some 'cramping' and nausea

floydianslip2 - 7 days ago
Anyone else have cramping that they are concerned about? Such an odd feeling, it's not like a menstral cramp, feels more like pressure/pulling. I read that it could just be the uterus growing, but isn't it a little too early for that?

mommylh - 8 days ago
Hi Ladies, I'm officially in! Tested yesterday and got the positive. Super excited, this will be number 3 :) - 8 days ago
This is my second time on here...had my last in 2009. I think I am 4-5 weeks pregnant. I am actually a surrogate this time around and had my transfer June 30th. I know my due date but not 100% sure on how many weeks. Happy to be back here though. Going to be a bit different this time around :)

elequin - 9 days ago
Hi everyone, I'm back again for a 3rd time... omg!!! Excited but stunned. My hubby and I are now 3 for 3 with ttc, and I'm shocked because I honestly thought that this was a month we'd maybe missed it! Looking fwd to reconnecting with ppl again on this site - I found it heaps of fun with my previous two pregnancies :) - 9 days ago
Congrats to all the new comers!!! Will be off to 5 weeks Monday!!!! Had first doc yesterday to confirm it.....they are thinking I'm more around 7 weeks but I know better

floydianslip2 - 10 days ago
I just got a faint BFP this morning too! Congrats!

alismom2 - 10 days ago
hi ladies just took a test this morning and im super excited!!! i was on this site with my DD and had a great time... although i had to create a new page. My BF is away on a fishing tournament so he doesn't know (don't want to distract him) so i can tell you all instead lol yay baby!!!

1st.time.momma - 12 days ago
Heidi- I've been cramping through out my pregnancy too. I think its normal. Also congratulations!!! Im off to 5 weeks tomorrow. If you need anyone to talk to you can message me. Its kinda quiet here the first few weeks ive noticed.

heidi7 - 12 days ago
hi everyone. i was on here with my first and will hopefully be having my 3rd in march. i think i am 4w4d. i have cramping/pressure. I hope thats normal. anyone else experiencing that?

1st.time.momma - 15 days ago
Yeah lots of naps going on over here too. Ive felt kinda sluggish so I told my work about expecting so I kinda have an excuse when im not moving as much as I used to. - 15 days ago
Yes I'm falling asleep everywhere lol can't touch boobs at all and getting the pulling pains

1st.time.momma - 15 days ago
Well congratulations lizap...I found out before my 4 weeks also. Do you have any symptoms? I did during week 3 but week 4 its all kinda stopped. I do get sore boobs every now and then and back aches but no nausea. - 15 days ago
Just found out after two years of ttc our 7th is on it's way!!!!!!!!!!!!! I'm using my phone and this is a new profile cause it wouldn't let me on my old one so now it's not letting me add stuff to my profile but yeah not even 4 weeks yet should be due march 23!!!!!!!

1st.time.momma - 16 days ago
So update: this is my second pregnancy and i know they say you show alot soon but seriously. 4 weeks is a bit early to have your belly start to harden. On the upside..nausea has subsided. Ya ya hopefully an indication that its a girl this time. Anyone else alive in here? I know im not the only one:)

1st.time.momma - 18 days ago
Well officially 4 weeks. Feels weird letting everyone know so early. My first pregnancy I waited until 21 weeks. Ya that wasnt fun being 18 and all. Lol

DixieMay - 23 days ago
So excited. Just found out this morning I'm 4 weeks and 2 days.. This is my dh and my second child. What a exciting thing to find out on vacation lol.. I used this website with my first pregnancy. I look forward to hearing all your edvice.. Baby dust to everyone!!

sford77 - 25 days ago
So exciting! I'm 4+2 today and I just want to fast forward through the first trimester and get to the fun stuff lol.

lisatek82 - 25 days ago
Hi Ladies... We found out last Thurday we are pregnant with my third and the first for my husband. We can not wait! I was on this site years ago with my 6 and 7 year old boys and can't wait to go through the journey again. - 26 days ago
Hi ladies, been years since I used this site but an unexpected pregnancy has brought me back. I have 4 boys and look forward to seeing what we are blessed with this last time

Blessedmama47 - 26 days ago
So excited!!! Got my BFP this morning!! I had a feeling but wasn't sure b/c I have had no obvious symptoms! Very happy to be back on this site with baby #4!!!

sford77 - 27 days ago
Hello everyone! I found some lifelong friends in this group when I was having my Dec 2010 baby and I'm so happy to be back again! Due March 11, 2015 with Baby #6!

2bBlessedw2 - 27 days ago
I don't get why this site says I'm 5 weeks tomorrow. My AF was due on a that would have been 4 weeks. So why is it not 5 weeks the following Tuesday? It doesn't move me till Wednesday. I guess because the day has to be completed before a week is completed?

2bBlessedw2 - 27 days ago
I took my last digital and it still says 2-3 weeks.:0( Tho my line is a lot darker. I guess tomorrow it will say 3+. I gotta buy more now. Oh well.

brandyleigh - 28 days ago
2b good to hear!!!

2bBlessedw2 - 28 days ago
Thanks LUV-Oh,'s not mean at all. I feel the same way!!! One healthy baby is perfect for me! Naptime but my son is fighting until he naps...I can't. My DD is letting me (she's 6) but my son...he wants to go all day!!! Uggggh!!! I could not see myself with a 1.5 year old and twins. OMG!!!!I'd be in the crazy house! LOL

luvmykiddos - 28 days ago
Good to hear 2b! I was gonna mention vanishing twin to you but have been too busy to be on here a lot today. Sounds mean, but I hope that's what it is so that you at least get one baby outta this! Keep us posted! I'm stillk trucking along waiting on Thursdays scan...

2bBlessedw2 - 28 days ago
BLESSEDMAMA-I'm 5 weeks tomorrow and I barely have any symptoms. My boobs have gotten more full and a little sore...that's about it....oh and I recently began to feel tired all of the time. I do have a 1 year old that is a horrible sleeper so I can't really say at this point in the game if it's a true symptom. Good luck!

2bBlessedw2 - 28 days ago
You know...I'm really on a roller coaster here. Result today was 1,162!!!! Doubling time of 41.26 hours! The nurse I spoke with today suggested that it may be twins and that one of them is not doing well. That would be the reason for the slow down. I just pray it's not ectopic!!!! I will talk to my Dr tomorrow when she calls with my progesterone. So, for now...I am back!!!!

brandyleigh - 28 days ago
Good luck everything is crossed for you!

2bBlessedw2 - 28 days ago
I'm going today because I need that progesterone back by tomorrow. If it's low it may be too late. I'll get hcg back today tho.

Blessedmama47 - 28 days ago
Congratulations to all you mamas that got your BFP!! I am patiently (well not patiently) waiting and hoping to not be greeted by AF in the next few days!! Did any of you not have any symptoms before you got your BFP?? I have semi-sore breasts, not real tired.. Was just wondering if you can be symptom free before getting a positive result. I have children and just can't remember if I had any symptoms prior to finding out!!

brandyleigh - 28 days ago
2b I would wait till tomorrow and drink plenty of water

2bBlessedw2 - 28 days ago
Hello ladies. So the crazy poas person that I am. I tested again at work last night. The first draw was at 11 am. The second was at 8pm. I got 867 at 8pm and I plugged that into the calculator and got a doubling time of 35 hours. God only knows what's going on but I have no spotting and no actual sign of miscarriage. I'm debating whether or not to go today to get blood drawn or tomorrow. If I go today then I will have a 3 day space till next draw which will be better. So confused but today my line is darker than control.

brandyleigh - 29 days ago
Good luck 2b!!!!

2bBlessedw2 - 29 days ago
The fact that it's slowing so early on is NOT good. I'm no stranger to this, unfortunately.

luvmykiddos - 29 days ago
Don't give up yet 2b! My doc wanted them to double by 72 hours. You're not out yet! Fx!

2bBlessedw2 - 29 days ago
I'm headed for another miscarriage. Hcg is 726. Doubling time of 65 hours. 😢

luvmykiddos - 29 days ago
So jealous you can test at work all the time 2b! No fair! How many dpo are you now? Hope it's over 1000 for ya! Can't wait til Thursday for my scan!!

2bBlessedw2 - 29 days ago
If I doubled from Thursday to Saturday I would be about 700...but it's been 3 should be over 1000. :0)

2bBlessedw2 - 29 days ago
I work today so blood results around 3pm. Eek!!

luvmykiddos - 30 days ago
Yep. It's posted.looks very much like yours :)

brandyleigh - 30 days ago
Did you post it I want to compare it to mine

luvmykiddos - 30 days ago
Yay brandy! And you made me have to go buy a couple wal mart cheapie tests today while I was shopping so I could see how mine looks on that brand now :) 21dpo and test line appears slightly darker than control! Would probably get that 3+ if I had the balls to do the digital... Lol.

brandyleigh - 30 days ago
Yay 2b!! I know I feel the same with the Walmart ones!!

2bBlessedw2 - 30 days ago
My test line is now as dark as the control on the $tree test! Woohoo!!! Those $tree tests have dark control lines!

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Members in week 4:
  1. Leashlush - 31 Mar 2015
  2. RedBeamer - 31 Mar 2015
  3. lovelylayia - 05 Apr 2015
  4. BethQ - 06 Apr 2015
  5. DaceeLane - 06 Apr 2015

The due date from members in week 4 is from Tuesday 31 March 2015 up to & including Monday 6 April 2015. See the full timeline here

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