Opinions? So I started the depo shot may29th got my next period June 29th I went back at the end of…

Opinions? So I started the depo shot may29th got my next period June 29th I went back at the end of august and decided I didn't like the shot(it made me bleed for a month) I got the IUD that lasted maybe a week (my body rejected it) I went on the pill about a month ago. After I started it my fiancé and I had unprotected sex 2xs I'm at the end of my pack and not getting my period. I'm having pregnancy symptoms but I took 3 tests they're all negative. This morning I went to the bathroom and when I wiped there was like mucus with blood in it. I'm so confused! Do I test again? Or is it the pill messing with me? TIA