Ovia and Glow do not agree when my most fertile days are...

✨Jen✨ • 30, happily married to my best friend ❤️ TTC #1 for 2.5 years! BFP 4-10-17 🤗💕
Ovia says my fertile week was the last week of February and Glow says the first week of March. So... Who is right?