Week 21

Your baby’s blood circulation is completely functional. The umbilical cord system continues to grow and thicken as blood travels with considerable force through the body to nurture the baby. The placenta is now almost equal in size to the baby.

Your baby will be getting much larger during the second half of your pregnancy. Your baby’s crown-to-rump length at this time is 7.2 inches and she weighs approximately 10.5 ounces. Your growing baby is about the size of a large banana. You should be able to feel your uterus about a half of an inch above your navel. Your weight gain so far will be around 10 to 15 pounds.

As your baby begins to lay down more fat, your weight will also increase. During the next 10 weeks, you will gain about half of the total gain for your entire pregnancy. Strangers can now tell that you are pregnant! You might notice an increase in appetite because you need 500 more calories a day to support your charged up metabolism. It is best to avoid processed foods or foods high in fat, calories or sugar. Some women also get strong cravings for foods. If you notice a craving for something unhealthy, you should contact your doctor. Craving for unusual things is known as pica. Some women crave cigarette ashes, charcoal, beer and other non-food items during this time.

Your baby’s different organs and systems are maturing. The fetal digestive system is functioning in a simple way and your baby can swallow amniotic fluid. After your baby swallows the amniotic fluid, she is able to absorb water and sugars from the fluid and then the waste is passed as far as the large bowel. Your baby swallows the amniotic fluid in order to prepare itself for life outside of the womb. Some babies consume as much as 17 ounces of amniotic fluid in a 24-hour period. Your baby already has a high number of red blood cells and the white blood cells are beginning to be produced. Taste buds are being formed on your baby’s tongue this week also.

Don’t be surprised if your legs and feet become swollen throughout the day. You should try to get off of your feet some throughout the day and prop your legs up. If you notice a substantial amount of swelling, you should contact your healthcare provider for evaluation.

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  1. casanova 21 April 2016

    Good Morning ladies, My chest has completely broken out and I am as big as I was with my prior 2 daughters at almost delivery time!! What the heck! I am huge!! My feet are constantly swollen!

  2. mumof3tobe4 19 May 2016

    Stacey I'm sure ul be on at some point hope ur scan goes well just had mine today all went well good luck

    • stacey3 20 May 2016

      Mumof3! Hi! So glad your scan went good! Everything went good with my scan today too! Baby is on track. It was so hard to mail that envelope without peeking! The heart rate was 138. I don't know what I'm having still and it is driving me crazy! I just want to go get this baby's first outfit, but can't because I don't know if it is a boy or girl...all this clearance stuff is driving me crazy, if I am having a boy, I am going to need warm sleepers and all of that is on major discounts now! Oh well. I just need to remember that baby doesn't need that much and it will be fine. I have a girl name picked out...she will be Aurora. For a boy, we are leaning towards Austin. I don't really like the name Austin, but it is the only boy name my hubs agrees on. Pain in the tushy...Did you find out what you will have, Mumof3tobe4?

      • mumof3tobe4 20 May 2016

        By th sounds of heartbeat I'd say ur having a boy I'm having a girl I kinda knew I was before just hoping it was boy as boys seem to be easier then boys but wasn't overly fussed it makes it equal 2 girls and 2 boys glad everything went well with ur scan

        • stacey3 28 May 2016

          So glad your scan went good! A girl! 2 of each? So perfect! I think girls are easy. Are you done after this baby? We are. I am bummed about that. If this baby is a boy, I will be shocked! We were "trying" for a boy for our third and it was a girl. We were totally taken by surprise with this pregnancy. I was going to be starting birth control after my cycle that never came. I was not on any form of birth control since our 2 1/2 yr old was born. We finally decided we were just going to be done. Must be meant to be...lol.

  3. Falsterbo 11 July 2016

    Hi All, I will be 21 weeks in a day or 2. Yesterday I noticed brown spotting and i got all freaked out. Has anyone gotten this around this time? I had sex maybe 4 days prior to the spotting. It seems to only have lasted that day.

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