I would probably chart as well to give you an idea of what your before and after O patterns are for future reference.

If you weren't having the bloodwork done I certainly wouldn't recommend that you rely solely on OPK's simply because it is possible to have multiple fertile appearing times in your cycle without actually popping the egg.

The ONLY conclusive proof of ovulation is a) a clear thermal shift of temps b) bloodwork and c) pregnancy.

Lisa