I've got the TTC blues

Katie • 26 y.o. TTC #1 since Jan `14. Took out last nuva ring Nov. `13.
I'm on CD 58, I got a BFN on a wondfo this morning. I just bought some vitex this week, but I don't want to start it til AF comes bc I'd feel bad if I started it and was actually pregnant. A coworker suggested I get a blood hcG done, but I'm cheap and a $50 BFP would hurt more than a $10 BFN. I don't know what day I ovulated (or of I did) bc I have yet to see a pos OPK since quitting nuva ring in Nov '13. I saw an NP (Tricare) on CD 12 and she won't give me a referral until I've suffered through two more LONG cycles. Last (& longest) cycle was 50 cd.
So what gives? Any ideas or suggestions are welcome. I'd really like to have a drink and relax, but I'm on call for work this week & I'm still hopeful.