Scared or nervous

so scared or should I say nervous about my ultrasound this Monday I was ok till I seen October is miscarriage awareness month it scared me. I just had a stillbirth at 6 months on march/ 22/16 due to placenta problems part of placenta started to detach itself at 9 weeks I'm pregnant again with some what of the same problem. I'm 17 weeks with this pregnancy I found out at 15 weeks they told me he is growing right on schedule everything is ok with him I just need bedrest nd to see a fetus specialist I'll be having a deep ultrasound as my Dr puts it they will be looking at everything thing in my uterus.First I lose my daughter after trying for 4 years to get pregnant then to get pregnant again to find out I have a fibroid tumor nd a placenta problem ugh it feels like I can't catch a break. I don't want to lose my son too my heart can't take no more pain.