So my periods have been acting crazy! This app has been trying to guess my next period. My last period was 62 days ago. The app is saying I'm 26 days late. The days between my last 2 periods were 36 days, the one before that was 47 days, and the one before that was 49. I took a test on Friday and it was negative. Should I bother getting a blood test? I've just had friends and family say that I nay not be ovulating because my period has been out of whack! It's been like this since last June when I got my IUD out, I only had it in for 3 months. I didn't want to go to the doctors until a year of trying..