I've not personally fallen pregnant whilst BF however I know so many others that have. Maybe an ovulation test might help you understand if you are ovulating because I think you still can even without a period
You can ovulate without a period, and you can have a period without ovulating. Our bodies are weird 🤷♀️ the just go for it approach sounds sensible!!
Following as I'd also like to know if anyone has fallen pregnant while still breastfeeding as I'm still BF my son (13 months) and haven't had a period yet but we might start trying for a 2nd baby in a few months and I'm not sure when I will be stopping BF or getting my period back.