Rainbow baby after tfmr

Hi all, found out about 2 weeks ago that im pregant with my rainbow baby. On the 6th of March i cracked a double yolk and cried because when i lost my son at 17 weeks pregnant, my sister found out she was pregnant with a boy! I sobbed saying to myself "yep someone else is going to be pregnant in the family now". Fast foward to the 6th April i'm a week late for my period. Now this is common for me as i have PCOS ans sometimes i hyper ovulate. But i decided to test, preparing to be let down. Me and my partner had been trying for a whole year. Two lines appeared and i screamed. When i say i am so scared and anxious its an understatement. Ladies how do you deal with the anxiety after such a loss? I had to have a TFMR due to my son having body stalk anomoly.