A history of an early first trimester miscarriage Fertility treatment, such as in-vitro fertilization IVF to conceive this pregnancy You or your partner currently have a sexually transmitted infection You have bladder infection, or a vaginal or a cervical infection or inflammation Follow the advice of your doctor or midwife about when you can resume intercourse after the threat of a miscarriage passes, or you have miscarried, or any other problem resolves. As long as you are comfortable, in the mood, and have an uncomplicated pregnancy, go ahead and enjoy your normal sexual activity. There are, however, some circumstances where you may have to be careful about having sex. Women with placenta previa a condition where the placenta is covering the cervix are at risk of hemorrhaging if they have sex during pregnancy. For many women, some of the normal changes of early pregnancy and other factors can create a psychological barrier to having sex. Was this page useful? You currently have signs and symptoms of a threatened early miscarriage, such as: Sex will hurt the embryo or fetus: This phenomenon typically occurs during the third trimester. More on sex in pregnancy Get the lowdown on the best sex positions when you're expecting. When to Avoid Sex in Early Pregnancy Although regular vaginal intercourse will not initiate a miscarriage or increase your chance of having one, it can complicate an already threatened miscarriage. Women with premature rupture of membranes PROM , which occurs when the sac containing the developing baby and the amniotic fluid bursts or develops a hole before labor, should also avoid sex during pregnancy, Salasche says. Because the content you submit in the interactive parts of our site will be available to all our users and may be available to the general public, please do not provide personal or confidential information. Different countries may have different data-protection rules than your own. Other red flags that sex during pregnancy may not be wise may occur after intercourse. Talk with your doctor or midwife about your concerns and risk factors if you have questions or fears of having sex during your pregnancy or you are worried about changes in your desire for sex. Do not let your partner blow air in your vagina because this could allow air into your bloodstream and into your lung circulation air embolism.