So worried now :(

I know it is stupid and maybe tmi  but my last two pregancies ended after I had sex ( probably not the reason but bad timing maybe??) but I lost my first at 20 weeks when we were having sex I started bleeding and went to the er and no heartbeat then a few months later I lost my baby at around 6 weeks I started bleeding the morning after sex and it was a miscarriage .. This time I found out I was pregnant and haven't had sex since I found out until today he wanted it I kept telling him no but finally I gave in now I'm freaking out I hurt the baby ... I haven't been bleeding or cramping and honestly I didn't even let him go in the whole way but I still can't get the idea out of my head that I might wake up tomorrow and be bleeding again ... Can anybody offer anything to help and try to keep my mind off this .. My ultrasound appointment is a week away I am counting down the days I just want to see my baby