Ovulation testers. do they surge more than one day when you test? or only the day your lh surges?

You can test positive for more than one day, everyone is different. It is possible to ovulate later though...I too am on pills to make me ovulate and I don't ovulate until CD18 which is 10 days after I'm done with the pills. When you are testing though, there should be 2 lines of the same color. It's not like HPT where even a faint line is a positive. Good Luck and lots of baby dust your way!!!