need advice

My mil thinks I am trapping my partner cause i want a baby and he doenst edit: i am not wanting kids still for years to come, she's pissed too that i refuse to use birth control now.. I have been with him for over 4 years but we are still young (18 and 19)... his mother just hates me anyways she just liked to stir the pot whenever EDIT AGAIN: i agree with Samantha, i can't take it because I get nausea from all the forms, and also we just recently started to talk about kids, and his mom asked if he would ever have kids too and he said he doesn't want kids right now and she said he can't have kids with me and said i am too much of a devil whore to even be with him