Ovulation...

Abby

I use two apps to get up with my period and ovulation. I've been recently doing ovulation strips. I use the app Premom and I up load the strips. It states my LH surge is high and I ovulate today.

Then I use my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> and upload the strips it States the are negative and it pushed the date I supposedly ovulate back two days.

Has anyone have this problem?