Hi

last week my breast got huge and swollen and when i push on my nipple white liquid comes out i have taken 4 HPT and they all came bact NOT pregnant.
my cycle is inregular so i have no clue when O should of happen.
If im not pregnant what is causeing the sickness and leaking breast. I thought for for sure i was pregnant  

try going to see your doctor they can do a blood test

I would call your doctor and have them give you a blood test.
Other things can cause leaking breasts other than pregnancy but that is where I would start.

i agree about having a blood test done.....other hormonal factors can cause breast issues and leakage.