When your like 38 or 39 weeks should be fine. They type of job you have don't really require much . So save up as much money as you can. Than you can spend more time with the baby
Most workplaces allow it at 35-36 weeks any earlier you have to have a reason like high risk pregnancy or something like that.
I would try and stay as long as you physically can because it's more time you get to spend with your little one.
I'd say beginning of September...
I'm taking mine a week before my due date at 39 weeks which is when I plan on doin my c section also
Work as long as you can! It will give you more time with baby before you have to go back to work. With my first, I was a server and worked right up until the day before. It helped the time pass and I was so glad I got to spend my entire maternity leave with him. One of the hardest things in the world is going back to work after maternity leave!
I'm 36 weeks now, due September 1st and starting my maternity leave at almost 39 weeks. I work as a waitress and I'm on my feet all day, but it's not bothering me too much yet. The longer i stay working the more money i save and the more time i get to spend with my boy after i have him! :) good luck!