HELP!!!

I recently got off the Depo Shot after having it for 6 Months, and have had what could of been a period (2 days of brown spotting) a few days late,

then suspected Ovulation a week after,unprotected sex 2 days before Ovulation (Pull out Method)

2 weeks later was having crazy symptoms,plus small amounts of brown spotting, so tested,all Tests are Negative.

Now 9 days late and Mood Swings are Terrible..

PLEASE HELP..

Last light I was miserable, just randomly Crying, ugh....