Late by 2 days.... I think?

I just downloaded this app so it could help me see if the other app I was using was wrong!

My other period app said I was due on Thursday. My period never came! So I was wearing sanitary products for nothing to avoid mess. It kept moving the period forward a day at a time and apparently now I’m 2 days late according to this one.

My intention is NOT pregnancy.

I’ve had no signs really apart from the odd small cramp but that’s been happening since Friday. No sign of spotting or the brown icky stuff.

Help????