2 week period (read)

I have an apt set for Monday but I want to see if anyone has gone thru this before.

My baby is 11 months old, breastfeeding less and eating more solids. He’s also been sleeping through the night.

I’ve had a period regularly since I’ve had him even tho I’ve been EBF.

I’m currently in day 13 of my period and I don’t know why. Last week I was covered in acne with no cramps. This week I have no acne and a lot of cramping.

Has anyone ever gone through something similar? Last month we decided to start trying for our 3rd baby and now this.