please help!

I heard my mom and aunt talking earlier today, (in front of me but I had earbuds on) and they said they think I will get pregnant at age 15(I'm 14), cause all my other siblings have kids young, my oldest sister at age 16 had her 1st kid(she's 24) my third oldest sister is having a baby in a few days (she's 17) and my brother (r.i.p) has a son(he was 17), I am crushed they think that about me, and I know I'm probably over reacting , but I'm crying right now cause of that