I've been taking one ovulation test every day since my last period ended, since I haven't been getting pregnant (been trying for 3 months) and got a negative each time. During the first two weeks I would get a solid top line and a very faded bottom line. About a week and a half before I was due to start, the bottom line faded until I only had just the top line. I started my period yesterday, and decided to go ahead and keep taking the tests. The bottom line came back the day before I started, and has been getting stronger each day. The next couple of days will be very interesting to see if I get a positive. Has anyone else ever ovulated during your period?