What is going on?? TMI

Hannah

Okay, so I got my mirena removed 29th Sep, 3 days after my period ended. I tested ovulation from the 2nd - 10th Oct and had very postive on 7-10th. So I assume I ovulated around then. I had multiple negative results, had nausea, couldnt eat certian foods, had cramps and then my period come a day late, only lasted 4 days, then just suddenly disappeared, nothing come out for 2 days and now im getting this? Is there still a chance i could be pregnant? My sister had a short light period and implanted after as well with her of her kids. This month has being very emotionally confusing and draining and would like to know if anyone else knows or as experienced this?