OPK-LH Surge/Ovulation question

[Guest guest]

My hubby and I are using an OPK this month, for the first time. We

have been trying to conceive for only 2 months now. I have a gut

feeling though that it is going to take a long time for me to

conceive. I tried with my first husband for 7 months, no baby. But

I was 269 obs then and under a tremendous amount of stress. I am now

147lbs and not under stress (not as bad as it was then anyway-we all

have stress though). But I just have a gut feeling I will have a

tremendous amount of difficulty conceiving. Anyway (sorry so long)

my question is about this ovulation predictor kit. This morning the

lines indicated that I should ovulate within 24 to 36 hours...BUT I

have read that some women don't ovulate every month. If you use an

OPK and get a result indicating a surge in LH, does that mean that

you will definitely be ovulating that month, or could you still not

ovulate even though you have an LH surge?