Has anybody had a BFP 5 months postpartum prior to getting your first period?

So, I’ve been feeling a little weird. Lots of cramping, thirsty, and mildly lightheaded. No period since my baby was born, 5 months ago. I was curious and took a pregnancy test, well I took 5 and all cane positive. But to be honest I’m so shook that I don’t even know if it’s true. Could it just be my hormones, btw I was also breastfeeding and baby stopped liking it like 2 weeks ago.