Hello all, (I hope this is the correct section for my post) My DH and i have been trying to conceive for 3 months now and still no baby.....so thought this cycle i would try OPKs! I have a 35 day cycle (Aprrox) and got my first Positive OPK on Friday morning (CD16) and was positive for a couple of days untill about Sunday Night when it faded away. I know you ovulate anywhere between 12-36hrs after a positive OPK, Do i work it out from my first positive OPK or the last OPK? It still seems like it is too early to ovulate considering how long my cycle is? Any information would be appreciated?