So my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> says that I'm 3 weeks 6 days, and my <a href="https://play.google.com/store/apps/details?id=com.glow.android.baby">baby app</a> says I'm 4 weeks. Yeah, I mean it doesn't really matter to me that it's a days different, but I thought I would be 3 weeks and 3 days or something like that. My period was due on this Wednesday. I thought I was supposed to be 4 weeks on the day my period was due? My first day of my last period was on Feb 16.

Just a little confused.