Maternity leave

When do you plan to take your maternity leave? Most women say they are planning to work up until the day . Usually those are ones with desk jobs. I don't have a desk job but planned to work up until two weeks prior to my scheduled c section but gosh I'm getting tired! I don't get breaks at all nor do I ever sit down. I'm on my feet and moving my entire shift. I assume that's one reason I haven't gained any weight, I burn everything I take in. 6 hr shifts fine but 9 1/2 hrs I can't deal. Ugh. 😩