Quitting work after baby

Is anyone else quitting their jobs after they have their baby? I'm having my 3rd baby in July, and I plan to quit my job. My hubby makes enough money to pay the bills, but it will be a bit tight. We will have probably $200 extra each month. And that will probably go to kids clothes as they get older, and maybe sports if we can afford it for our older one. I keep having horrible guilt that we aren't "building a better future" for ourselves. When all 3 kids are in school (kindergarten at least), I will be going back to work. But it is so hard right now with work because of how often the kids get sick and not allowed to go to daycare or school, so then I have to take work off, and then work gets pissed I'm using my vacation/sick leave so often. And I also like to be home with them, because I hate the fact someone else is raising our kids, especially in a way that my hubby and I don't approve of. It just makes sense to have one parent home until they are all in school full time. I'm just struggling with the guilt that we won't be able to give our kids everything they want. Anyone else? Am I the only one? Anyone else just feeling like they were meant to be a SAHM? Side note- my hubby is 10000% supportive of me staying home and raising the kids