First period after chemo

I was diagnosed with triple negative BC in May 2023 at 29 years old.
I was having the injection as contraception at the time so didn’t have periods anyway.
I went on to have 15 sessions of chemo, surgery and then radiotherapy.
I’ve now had my first period since treatment which came about 5 months after finishing chemo.
It’s now been going on for two weeks! Has anyone else experienced this? Not sure if it’s worth asking my doctor about or just ride the (red) wave…