Sch and sex?!?!

So I was told about my large sch during my sixth week of pregnancy. Now that I am 11 weeks my doctor has noticed that my schedule is absorbing and doesn't feel that I need to be on pelvic rest anymore. I'm just so terrified to have sex. I mean sometimes I dream and feel as if I'm orgasiming during my sleep. I just don't want my sch to suddenly start to regrow or to bleed again. I only bled once and that was my sixth week of pregnacy. Any advice or anyone been through the same thing?