Period confusion?

Georgie

Me and my partner decided to finally try for kids after deciding that we would never have them 😂 turns out we were both saying what we thought the other wanted to hear.

Anyway, I stopped my pill March 16th. Had a bleed on April 10th. My question is, is this a withdrawal bleed or a proper period? It felt like a proper period and lasted 4 days (normal for me)

Thanks for help! I was on cerezette for 9 years if that helps?