Orgasim safe during pregnancy. But before you jump into bed, run it past your doc. Increased blood flow to your uterus and the placenta will help to increase oxygen flow and nourishment to your baby. There was also concern among moms-to-be about using masturbation aids, like porn or sex toys, during pregnancy. Because of this, you may be advised by your maternity care provider to avoid having sex in the final weeks of your pregnancy or, if your pregnancy is unstable. I was sick as a dog during the first trimester. It may be better to lie on your sides, either facing each other or with your partner behind. But pregnancy can interfere with ability to achieve orgasm too. It keeps your relationship alive. However, it's normal for your sex drive to change during pregnancy. In a way, I totally get it.