The Insider's Guide to Pregnancy and Childbirth, as bacteria can spread to your vagina. It's like classic missionary, but he won't be resting his body weight on you. Avoid all forms of sex — vaginal, oral and anal — if your partner has an active or recently diagnosed sexually transmitted infection. Kneel on a couch with your belly facing the back of it; use your arms for support. The old standby missionary position for intercourse may not work for you now. Although many couples worry that sex during pregnancy will cause a miscarriage, sex isn't generally a concern. This allows time for the cervix to close, postpartum bleeding to stop, and any tears or repaired lacerations to heal. Rarely, a burst of air might block a blood vessel air embolism — which could be a life-threatening condition for you and the baby. This can be particularly true if you're breastfeeding. Your health care provider might recommend avoiding sex if: Spooning can also be a great lazy-day option. Here's your chance to do fun poses that may get more challenging in the third trimester, thanks to your growing belly. But if you are in the mood, first-trimester sex has its advantages: And if you're worried that having sex during pregnancy will bring on a miscarriage , rest assured. Either way, here's what you need to know about sex during pregnancy. Enjoy this face-to-face pose while you still can! More concerning, anal sex that is followed by vaginal sex might allow infection-causing bacteria to spread from the rectum to the vagina.