I had sex clear up until about 4 hours before I went into labor! It totally depends on you and your SO. Some guys are not okay with it. Some mommies are not okay with it. But as long as you have the okay from your Dr., and you aren't experiencing any pain, then you should be good to go. As others have said once your water breaks you CAN NOT have sex anymore, you run the risk of REALLY nasty infections.