EandTsmum (1251 days ago) I never had any constipation through my twin pregnancy, I did have early heartburn though and it continued throughout, definitely had horrid early morning sickness, conceived 2nd cycle after ceasing birth control, and I was 27 when I conceived. The heartburn was pretty bad and I`ve actually been getting it again the last few days (I never get heartburn normally) and it`s reminding me of when I was pregnant. I`m on birth control now though so I`m 99% sure I`m not pregnant, but it is making me a little bit nervous.