Hey just wanted to add my 2 cents lol. You
CAN ovulate without a pos OPK. Sometimes your LH surge isnt 24 hours long, or even 12 hours long. So unless youre POAS every hour or so then you may in fact miss your surge. I get o pains, and they are usually right on. I decided not to do opk, just go by temping and CM and CP. At this point though i dont even know if i think temping was necessairy, because according to fertility friend, they cant tell by my temps when i o'd, but low and behold im pg.
Also when the Dr. Told you that you might be o'ing and you did the opk, you prolly did in fact miss your surge. You get it 24-72 hours before the egg is released, and it is believed that the o pains are the egg breaking through the follicle. So you probably just missed the surge. Good luck