Husband abusive

Hi I'm 23 and 6 months pregnant with a little girl and I have a 3year old son. My husband and I recently got married October 17th this year I've been knowing him since our 10th grade in high school. I honestly feel he has a problem he is very aggressive and abusive. I just know I'm going to end up losing my baby over him. I've even had thoughts of suicide to get away. I love him but I think he's bipolar. Our son gets scared and I just don't have the energy to fight anymore. I know my kids need me but I can't keep loving this way. Someone please pray for me