Answering from my wife's expereince here....Caitlin miscarried when she was 8 and a hlaf weeks pregnant. We weren't given any do's and don't's from the doctor either and I think it was a couple of days later when we first had sex. Caitlin's periods didn't start again for a couple of months after the miscarriage so it was 6 months later when we conceived.The pregnancy went smoothly, no problems at all. Caitlin is pregnant again now, due in 9 weeks. Again, this pregnancy has been fine.