I probably won't be much help since I only have experience with ttc. And, I'm newly pregnant now after having a miscarriage last month. But, with ttc experience, I can tell you that it is recommended to test 14 days past ovulation. Many women have reported false negatives when testing earlier only to find out they were indeed pregnant days later. Good luck!!!!!!!! There is a great board on the "ttc board" about nursing Moms ttc'ing. Maybe that would help.