help!

im a teen and i am sexually active, i always make sure the guy has a condom when i don’t and if he doesn’t we just don’t have sex. about 3-4 weeks ago i had sex and i missed my period, i am pro choice so i wouldn’t be so hung up on getting an abortion since i’m not able to care for a child but i’m not sure how my mom would react. if there are any teen moms out there please drop down how you told your mom, thank you!