Idk what to do

My childs father is pressuring me to abort. He got a gun and a box of bullets and hes telling me i have no choice or he’ll kill me. He doesnt want the “thing” alive and if i dont get an abortion i wont make it to the delivery room. He knows where i live and where my family lives. I dont want to abort but idk what to do. We already have a 3 yr old.