35 and worried about miscarriage

Anyone else 35 and older and just got a BFP or in first trimester? Is anyone worried about the chances of having a miscarriage or chemical pregnancy?

I just got my BFP, and awaiting on results of a progesterone check (I have pcos as well). I'm so nervous my results will come back low(even though my hpts have been getting darker)! The first trimester is going to drive me nuts, trying not to worry about it!!

Anyone in the same boat? Or has been? What did you do to keep yourself sane? Lol