*Trigger warning discussing abortion*

So I just found out I am 4 weeks pregnant and my boyfriend of 5 years and I are stuck on the idea of having to get an abortion let me explain. So he has one son from another woman and I have 1 son from a different father, we then have two kids together. We have had some struggle with money in the last 3 years and have been trying really hard to get our lives on track. We’ve been together 5 years and he doesn’t want anymore kids but I love being a mom and want more kids and it kills me to think that I need to get an abortion. Our last child was a birth control baby and even then we were having money struggles but we fought so we didn’t have to put ourselves in the position to have to get an abortion. This time around he is pretty set on an abortion and I know we can’t afford having another baby but I can’t stand the thought of getting an abortion. I always told myself I would never give up on my child and I’m 100% against getting abortion for myself anyways, So idk it’s just really tough and I’m trying to think realistically and but it’s killing me and need some advice