dealing with pregnancy after miscarriage

I miscarried twins in March, and I am now pregnant again. I’m 9 weeks, and even thought I’ve already had two ultrasounds and seen the heartbeat and my dr. says everything looks good, I am terrified. I don’t “feel” pregnant, I don’t want to get excited, or even attached to the baby. For some reason I’m convinced I’m going to loose this baby too, that it’s just a matter of time. I was wondering if anyone else who has had a miscarriage has also felt detached from and severely anxious about their next pregnancy. Does anyone have any advice that might help me relax and enjoy this time. I really don’ t want to feel this way. I want to be happy and excited. My partner and I want children so badly and we’ve planned for it. I just don’t feel it, I’m convinced there is something wrong, even though everything appears to be fine.