When did I ovulate?

Gemma • Mum of 3 boys 💙 UK 🇬🇧

Glow predicted im ovulating today. But I had sharp stabbing pains on my lower left side of my abdomen on 1st feb (Monday)

I’ve been checking my bbt but not very long as I lost my thermometer!

Not sure how the bbt works tbh 🤷🏻‍♀️ can someone explain?