I took preg test its negative, took 42 days aftr my first day of last period. Im always irregular. Noticd some stretch mark in d skin near both side of my peliv bone. Nd have some streaching cramps in d abdomen have some irritation near my bellybotton, sometims feel shrap pain in d lower chest ribs, having back pains sometimes. Will i b pregnant when can i take the next pregnancy test. Pls do help me;) :(