Hey everyone!

I’m a little confused on how many weeks I should be pregnant as 2 apps say 2 different things. From what I found it goes by the first day of your last period which was on October 3rd for me. This app says I’m 4 weeks and 6 days and the other app I’m using (babycenter) says I’m 5 weeks and 2 days. That’s a big difference. If going by first day of last period the babycenter app should be correct but I was using glow while trying to conceive. My first OB appointment isn’t until December 10th.