Off by a day

Day Day • 💍 2013•👼🏼1997•👧🏼2000•👦🏾2002•👩🏼2003•👼🏼2018•👼🏼2019•🌈 👶🏽2020

If we count the first day of our menses as day one; then today makes me 5 weeks. Glow has me at 5 weeks but Glow <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">Nurture</a> had me off by a day at 4+6. Anyone else off by a day on Glow <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">Nurture</a>?