Help so Confused!?!?

Angel • 23, Married, DD born 2/9/17, DS born 1/31/18, EDD 05/09/19
I have irregular periods but usually they are about every two weeks since stopping depo in june. My LMP was January 27 and a couple of weeks ago when it should of been AF, I had very light pink spotting and nothing since. Currently experiencing tender breasts\nipples, neasea, fatigue, vaginal wall swelling and dryness. I also feel extremely bloated but have lost 5 pounds. Took HPT yesterday and it was negative and currently in cycle day 30. Not 100% on DPO! Any help or ideas would be great!