Help me plz

I had any early abortion, think it was only 4 week, I did it on d 6/8, bleed till d 12/8,  then I had unprotected sex on d 14,15,16,18,19,20,21,22,23,24,25,26,31,then d 3&7 sept, since then have been having constant headache, heavy breast but no pain, white creamy discharge, pee a lot, but on d 11,12/9 I started spotting. Then d 13& 14 i bleed then it stop. I normally have 5 days cycle. Now my breast are still heavy, have nausea on & off, started have cramp again, feeling sick. But all my test are BFN, what do u think, help plz