Angel,
I am waiting to have me lap done right now. So I suppose I am not 100% diagnosed but my reg OB-gyn and pelvic pain specialist both believe it to be endo. For the past years (since I was around 14) I had periods so bad I woulld have to go to the emergency room, I would be vomiting and jus tin a lot of pain every time I had my period. Bc pills helped, although I rarely took them on schedule, and would always eventually quit taking them. I was on the depo provera shot for around a year, and just got off this April. I have also been diagnosed with IC (interstitial Cystitis) which my specialist said he sees a lot in girls with endo. It basically is the irritation of bladder from (something?). They dont know for sure but certain foods/drinks make it worse. Anyways, this is my first cycle TTC and I am also worried about having infertility issues. I am on CD 37, adn I believe I ovulated on CD 9 (I track CM, but I do not Temp). I was expecting my period to come 8 days ago, and theres no sign of it popping up anytime soon! I called my OB nurse and she is doubtful that I am pregnant but I have never had issues with overly long cycles until now. Have you ever heard of endo/ related hormone imbalances causing BFN for an extended period of time??
Also, the pain with endo suring sex 4 me is a very sharp "pull it out now" pain w/ deep penetration. But depending on the severity/ location it can feel different! Has your OB ordered an ultrasound or done a physical exam looking for this? Also, how old are you?