4 weeks 4 days vs 5 weeks

Jana • 40 years old. Chemical in April 2015, MC at 12 weeks in August 2015. BFP February 21, 2016

This app has me at 4 weeks 4 days. In the settings, I got to input that my last few cycles were 31 days. When I called Dr today to make appt, they didn't ask about my cycle length, and said that I'm exactly 5 weeks. Do I go by what Dr said, since she's a Dr? Lol

Had blood drawn today. Tomorrow at 9 am can't come soon enough!

Praying that my numbers are where they should be!