Help Me Plz

Ciara

I was using a diff <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> before Glow. My old tracker is telling me I'm 6 days late. I downloaded glow and transferred 3 month worth info from my old tracker to glow. Glow is saying my estimated period should start tomorrow. I screenshot my calendars from old tracker and glow. Can anybody help me understand?

I can show you the screenshots

Help plz