Is this normal?

Posted this in TTC because my SO and I are TTC and I’m afraid it’s not normal and will prevent us from getting pregnant.

My period used to go for around 5 days and it came every 30 days.

Now it goes for around 3 days and it still comes every 30 days.

I used to be on birth control a bit more than 6 months ago, I think and I skipped my period for 3 months on purpose and then stopped taking the BC.

Could something be wrong with me? I have an appointment with my GP today so I’ll talk to her about it but I’m just curious about what others think