Need to vent

Kristen
October 17th last year I had a chemical pregnancy after that I've been obsessive about becoming pregnant I want a baby with my wonderful s/o everyone around me is having babies. My best friend got pregnant last year with my ex boyfriend and recently stole the name I wanted (not friends with her anymore) but needless to say I've been surrounded with pregnancy and can't seem to get pregnant myself. My cycles change every month nothing ever stays the same and now I just got my period today at work and now I'll be due for my period the day of my miscarried AND im a bridesmaid at my best friends wedding that year. 
I just don't get it I don't get why everyone can get pregnant so easily why people who don't deserve babies are having multiple and I can't get pregnant once. Why it's just so heartbreaking UGH.