You've had a miscarriage. You or your partner has a sexually transmitted disease that has not been properly treated or has not cleared up. Your water has broken or you believe labor has started. You are expecting twins, triplets, or more, since some multiple pregnancies are considered high risk. Fear of hurting the baby.
Some men hold back because they're afraid they'll harm the fetus.
Simple anatomical information can calm such concerns. Neither orgasm nor intercourse, even with thrusting and deep penetration, will hurt the baby, who's safely cushioned in the amniotic sac. Feeling left out. In the pecking order of who gets the most attention during pregnancy, Dad often ranks a distant third after mother and child. He may grow frustrated, jealous, and alienated.