Periods

Carrie
When your period came back, did it come back monthly, or did it take a few months to regulate? I got mine back last month and now I'm 10 days late, assuming a 28 day cycle (Tested. Negative). 
I usually feel it coming for a few days before it arrives. No signs it's on its way. 
My doctor said to expect it to be more painful, but spaced out as much as they were before I got pregnant, but I was in the pill for 10 years prior. I honestly don't remember how far apart my periods were when I wasn't on the pill. 
Thanks in advance!!