
I would talk to your doctor. Ovulating is just one factor in getting pregnant.
This is NOT technical - but - my sister has sistic fibrosis (I know I just really hammered the spelling on that)...
Anyways - she had to go to the dr, have a surgery to "clean her out", then within a month she was pregnant.
(She could tell you more about this.)
But, my point is, she was ovulating, but the sperm wasn't able to get to the egg in time.

Good luck!