First month on clomid, day 19 no ovulation?

Alyssa

This is my first month on clomid due to irregular cycle lengths. I took it days 3-7. Today is CD 19 and my chart and opks do not show any sign of ovulation. Thoughts? My dr. Told us to bd every other day from 12-20. I have been having some mild cramping for the past few days.

Can I still ovulate or is it too late?