Last period was April 11 -12th . My boyfriend and i had sex April 19 & 20 i’m not sure if he pulled out in time or pulled

my period was supposed to start May 12 . (i missed it)

been having cramps the week my period was supposed to start . tender nipples and sore boobs, backaches, dizzy when i stand for to long (like showering & doing my hair)

lack of appetite .

i don’t have the energy to do anything.

i haven’t taken a test (i’m nervous) and if i take a test and it’s negative then what ?