HELP PLEASE!!!! 😟

1.I always track my ovulation and I always get a positive result.

This month my glow app changed three times so it said I was ovulating on a different day for 3 days in a row. I took a test each time it said I was supposed to ovulate and so far I have gotten all false test ( I took 7 test) .

2. Also something I thought was weird was that each test I noticed the line got lighter and lighter till I couldn't see the second line at all. Didn't know if that was normal or not.

3.My breasts are super sore they are never sore during ovulation. Always the week before my period or till I get my period. Never during the time of ovulation. Is this normal? I took a pregnancy test it was negative. Someone please answer my questions. You can only Google so much! 😣