Was Glow right for your first month?

This is my first month tracking using Glow and I'm trying to understand my cycle but now I'm just really confused. I feel like Glow had told me I already ovulated but I didn't have any indication of it. Could it be that because I only just started that it doesn't know enough about me yet and so calculations are off? I'm worried I'm missing opportunities to BD because the app says I'm now in the TWW period. Help??