I can do this but at the same time I can't

I'm having a rough day. I think that all the fatigue and 24/7 terrible nausea is finally pushing me over the edge. I have a 23mo old and he's super rambunctious and has always been a handful. I love him to death and I always wanted more children but I'm sitting here thinking what did I get myself into. I can't do this. 😭