PMS or early pregnancy??

Kate
Hey Everyone!
New to this app and trying! First month trying and just got off BC. Right now I feel I have symptoms but can't tell if they are early pregnancy or AF (they are both so similar.) back aches, cramps, sore breasts, vivid dreams, slightly naceous, little appetite. Any insight? Also, have tested and it was negative.. But I'm not supposed to get AF until Sunday so I know I'm too early. When do you typically test each month. And how the heck do you wait to test?! So tempting!!