Choosing sobriety for your baby

I stopped smoking weed when I found out I was pregnant and he’s 4 months old now, but I miss it. I know I need to be present for him and need to be sober for my breast milk for him, but I really miss those days being high the whole day. Struggled with depression all my life and I think I am finally at a good point mentally, right now I just miss being able to lay in bed all day high on days off work having no responsibilities. But I need to be stronger than that for him. I am.