ADVICE HELP!!

So me and my boyfriend have been together for a long time and have been trying to concive for about 6 months now. today when we had intercourse i started to bleed a little. We are eachothers first and we know that we don't have any infections we've checked. Also I never really thought I had a hymen because it never bled at all the first time, but could it have been the hymen that randomly broke? the bleeding only lasted during intercourse then it stopped an hour later it was light not very heavy. This may sound silly but could I be pregnant? I've heard story's about some people bleeding a little during Intercourse that found out they are pregnant, I've been super Nauseous and get super hot and need to cool down. I need your guys advice!!!