Confusion?

i am 10 days late on my period and i had sex w my boyfriend (well ex now cause we broke up a week ago) on July 14 we used protection but once he took it off it looked like cum was going everywhere but i didn’t think too much of it and lately i have been getting cramps, feel like vomiting, not want to eat the thing i usually eat, and my breast are feeling a lil sore and i can’t go get a test because my mom doesn’t let me out smhhhhhhh any advice ? 🤦🏽‍♀️