The journey

About a year ago I finally got myself together and decided to see why for the past 2 years I wasnt able to get pregnant.  1 year later and I am still trying to find out why and how I can get pregnant. I am undergoing fertility treatments that are not fun and get your hopes up over and over again each cycle. I did get pregnant once but it ended in a miscarriage. I just went through another let down today. HCG was negative, it means again next cycle I have to start again...