Abortion

So I had an abortion a few a month ago and as soon as that process ended I started to use birth control (the pill). I also started having sex again without a condom. I just wanted to know if anyone else has had an abortion and when did there period start coming again regularly? I think I started mine a few days ago which is about a month and few days after my abortion but there is barely any blood. I’m basically spotting, my stomach feels cramped up & i have been cramping, and i’ve been having headaches. So can anyone tell me when did they start their period after having an abortion?