Ovulation test after abortion

I had a abortion 3 and half weeks ago, I did some ovulation tests from last thursday... when me and my SO started having intercourse again...and they have been coming back with two Lines. Am i ovulating or has the ovulate test strips picked up some of my previous pregnancy ormone??? I also did a cheap pregnancy test today and there was a faint Pink line so i know my levels are dropping from the abortion. I would like to know when i ovulate again or do i have to have a period for that to happen.