I think I’m pregnant again and my baby is 10 months

I just had my 3rd child back in January. I opted not to get on birth control because it wreaks havoc on my body. My spouse doesn’t like to wear condoms and he pulls out when he wants and cum in me knowing I’m not on birth control. I can’t keep getting pregnant because I’ve had 3 c sections and the last pregnancy I had HG and that was extremely traumatic. If I’m pregnant I will have to get an abortion. I can’t go through HG again and I’m scared to get cut. I thought about getting my tubes tied but I’ve heard a bunch of negative affects can happen.