The only BFP I got is a Big Fat Period ?

Rant--ugh, so I had every sign in the book right down to IB and even a missed period. I didn't get my hopes up all month cause I didn't want to be let down. Once I missed my period and started getting nauseous, I thought this was it! I said a prayer this morning before I took my test...negative...then a few minutes later...BAM aunt flow. Whyyyyy?! Why is she so cruel? Why butter me up just to bring me down? Feeling hopeless and sad. I have 14 friends who are pregnant. 4 just announced this weekend. What's wrong with DH and I?! We're healthy, taking supplements, preseed, Mucinex, eating the fertility diet and working out. It just isn't fair. Losing hope for us ??