Ned support. Do I leave?

My fiance and I have been trying for baby number 2 and he just got fired for poor attendance. I don’t think I’m pregnant and am so sad bc that’s all I want but I think it’s for the best.

We have been together 5 years and have a son. We are highschool sweethearts but this isn’t the first time he has got fired for being late. When we moved into our first apartment together a few years ago he got fired and I just let it go bc we were so young like 19 and he has been blessed and hadn’t had to have a job as a teen. But he has not changed anything and I’ve tried everything. We were just on a 8 month break bc he was with our son while I was working a 12 and slept for 6 hours while our son was in the crib no food no diaper changes. We were just back to a good spot but I feel like I just had denial bc really nothing changed he hasn’t done anything to help him get up in the morning the only thing that changed was him helping around the house a little bit more.

He is a good dad and a good person but I don’t think he is a very good partner. We get along so well even when we fight it’s not a screaming match we don’t get nasty but I’m just exhausted of settling for less than what my son and I deserve.

I know this is so selfish but I also feel like my heart is getting ripped out when I think abt having to share our son and losing his family. I love them and I want him to be in his son’s life but the idea of only seeing him half of the time makes me want to die and makes me feel like a failure. It just feels not fair that he is at fault but I’m the one who has to suffer even though that is what’s best for my son. I don’t like that I won’t be involved when deciding on the boundaries when it comes to my son like his grandma wants him to spend a week at their house without us but I am not comfortable with that as he is only 2 but I won’t get a say if his his time.