miscarriage??

my boyfriend and I last had sex about 5 almost 6 weeks ago. We're both very busy with work so it's hard for us to have some alone time. So when my period was late I was a little scared. we didn't use protection and I was having symptoms like "morning" sickness, hot flashes, nausea, and I felt tired all the time. I was almost 2 weeks late and I got my period. I was suppose to take a pregnancy test today so I'm not ceretain if i was or not. Something doesn't feel right. I've been having these awful cramps and strange clots have been coming out. (tmi) this isn't normal for me. Could I have miscarried? this is just one of the things that came out.