Rainbow after the storm

Hello. So I lost my daughter 5 months ago at 38 weeks and 4 days… it’s a pain that I will never forget and understand. Via c section She was perfect 6 pounds 9.2 oz the prettiest baby I ever seen. They recessitated her but I lost her a day later. My partner and I decided to get a autopsy done and found out I had a fetal maternal hemorrhage and it caused her to be severely anemic and her organs couldn’t funtion Bc of the acid in her body. I am now pregnant again unplanned and this baby has the exact same due date as my daughter. I am so scared, what is this happens again, what if I loose this child? I pray over him or her every night even if I we’re to be in pain as long as he or she is okay idc. How do you guys stay calm with your rainbow child? :(