Really need some advice.

So, I'm 19 and 7 weeks pregnant. Im already stressed out as it is, and I struggle with BPD, anxiety, etc., So i feel like im gonna be a bad mother anyways. And me & my bd/boyfriend dont get along that well. We dont see things eye to eye over half the time and honestly i dont see myself being with him forever , but i am so scared to be a single mom and do it by myself. I love him but he puts my blood pressure THREW THE ROOF and its really hard on me right now. He tends to think he can tell me what i can and cant do also bc im carrying HIS child. I just need to know what i should do. This is so hard on me.