Bleeding

So I had my baby in February and I got my period when I should have and it was literally back to normal. Starting in October my period was 12 days late ( period was starting the second to last day of month and lasted for 4-5 days) so this time k started in the middle of October. Then November hits and I start early and now I’m spotting again. OB thought I had a cyst rupture but there’s no evidence of having cysts. Has anyone had issues like this after having their child? He is my first baby and I’m just a little concerned and not getting answers.