Ovulating ?

Mikayla • Amiri my angle baby at 32 weeks 👼🏾12/2/24 Miscarriage 7/11/24 TTC rainbow baby 🌈👶🏾

Been testing for ovulation since cycle day 11 the test at the top was from yesterday cycle day 19!! I’m not sure why they are still dark? I took letrozole days 5-9 and I feel like I ovulated on day 15 5/9?? Any thoughts?