Coping with Pregnancy Loss Community

I'm sorry for everyone's loss. I also am going through a very hard time in my life. I gave birth to my baby boy who was stillborn at 31wks and 1day for no fetal response. I felt no movement from him when I got up early am to use bathroom. I thought probably baby was sleeping and decided to then drink juice and soda and still no response. It then dawned on me, could this really be happening or is baby still sleeping? I then rushed to Labor and Delivery with my husband where I thought to myself, the baby is fine, just sleeping and I will leave here in a hr or two. When the nurse came in and did a ultrasound and looked puzzled. She kept trying to find heart beat but only saw baby motionless on the screen. She then called a doctor in who tried the same but looked at me and told me the worst news of my life. I could'nt help but start crying and screaming together with my husband. It was the worst day of my life.I then decided Instead of natural birth I opted for c-section instead, I could'nt deal with the pain of seeing my son born dead. We were able to hold and see baby after delivery, which is the most heartbreaking thing I ever dealt with. To give birth to a baby,meet him for the 1st time, hold his lifeless body,and then for nurses to take him away to morgue,it's a traumatic thing. I wish this on no one.Its been 6 wks already for my Post partum follow up with OB.I finally went to doctor yesterday who told me she recieved autopsy report. It stated baby died of Placenta Chorangiosis and MTHFR Gene came back slightly abnormal. I know this means blood vessels in placenta were clotted and bby was not recieving enough oxygen. My doctor is now telling me now I have to go for Thromophilia bloodwork for a possible clotting disorder and may have to take aspirin and anti-couglants for next pregnancy. I remember complaining to her throughout pregnancy I was having lots of pain and cramping in both legs with veins poping out. Which she stated was "normal". Also all my Gene tests and Quad Screen tests came back negative.

My question is could all of this been prevented and my baby been alive? Why now after baby died am I having all this bloodwork done? I keep thinking in my head what I could've done differently and baby would of been alive. I cant seem to get it out of my head that if I would've gone to hospital earlier, maybe my little angel would be alive today

I'm so confused and shattered by this