Around April I had an abortion, fairly early about 7 weeks in. To remove twins. It's been seven weeks. After my a abortion, naturally I bleed. The same day however I stopped bleeding. The next day I continued bleeding and it lasted for 2 days. After that, about a week or so later I had unprotected sex. 

About three weeks prior to that with no sign of my period returning, I took two pregnancy test. Both showing a bold line for negative but the second line was barely visible. 

It's been 7 weeks now today and I still show no sign of my period.