Periods ..

Is anyone else having irregular periods ? My period never went back to normal since I had the baby November of 2019. I am now a month late for my period, meaning that I haven’t had a period in 2 months and there is no sign of it either. No I am not pregnant, this also happened back in November when I had Covid, I never got a November period, it came in December but haven’t had one since. Not sure what to do or if anyone has been in similar situations?