About 3 months pregnant and depressed

Hey I'm new to this. Well, I'm about 3 months pregnant and have been feeling miserable through my whole pregnancy. i cry myself to sleep almost every night. when im awake im sad i forgot the last time i actually laugh really hard. my baby's father at first was being immature about the situation saying the baby is going to mess up his life but now he has "accepting" the fact that im keeping the baby even though once in a while he says really hurtful things to me. He's been brainwashed from his mom and because of her he has that mentality that having a baby is the end of world for him. He's i guess use to try to make me happy but due to some trust issue i cant trust him and he wasn't trying to reassure me that i have nothing to worry about. so as of right now he's tired of trying and he's done which makes me more stressed out as it is..