Don’t know what to do 😩

ma

Kind of a long post , so i am almost 14 weeks and still haven’t told anyone in my family im pregnant, I’m 24 and in a very stable and loving relationship with my boyfriend, my older sister is due in August and her pregnancy has been rough because the father isn’t involved and now my mom keeps making comments saying she’s glad im not pregnant and I should wait until im in my 30s and basically telling me to leave my boyfriend of 3 years to move in with my sister to help her with her baby..just totally disregarding the fact i live with my SO just because they don’t like him ..which isn’t happening..but how do i tell my mom im pregnant? I’m just so nervous.