It's not fair!!! ?

Why is it that my bestfriend can sleep with a random guy one night and get pregnant but when I get pregnant I get a blighted ovum and miscarry and now I'm in my 3rd month of trying again and I just feel like af is coming even though it's not due till the 30th!! How can she get pregnant so easy while I'm trying so hard with no results! Ugh I just needed to vent I guess.. Sending baby dust to everyone ttc ✨✨✨