What is going on with my body?

[Bubba98]

So I have been experiencing symptoms such as nausea, vomiting, light pelvic cramps, back aches, sore breast and have been feeling very fatigue.

I had missed my period on it’s expected due date, had experienced light spotting 4 days after for only 48 hours. After the 48 hours had passed I had no blood what so ever for a whole 24 hours only to wake up the next morning with blood in my underwear. But that is the only time so far I have bled.

I have taken two pregnancy test & both have come back negative.

I am confused as to what is going on with my body. On and off spotting! No full flow! 2 test say Not Pregnant!