devastated! 2 in 5 months x

Me
Sooo
Yesterday I had my second miscarriage after one in June! 
I don't know what to do, like what's causing it, what blood tests etc to request, this was my rainbow baby I lost yesterday! I even seen their little fingers and toes this time. I would have been 10 weeks today. 
What do I do, sorry for this ranting posts :(