Frequent periods while EBF?

Maya
Hey ladies, I'm EBF my 6 month old, she hasn't started solids yet and nurses through the night. I've had 5 periods since she's been born with the last 3 cycles being 22, 19 and 21 days long. Before I got pregnant my cycles were around 32 days long.
I thought breastfeeding would make my periods less frequent, not more. Has anyone else experienced this? So far I've been more annoyed than concerned but my mom thinks it's weird enough to see my doctor about. I don't wanna go unless this is actually concerning so I'm wondering if anyone else has had this happen.