Maternity leave?!?

Ok y’all I’m 36+4 and still working. I’m a nurse and do 12 hours on my feet. Today was rough. When did y’all take maternity leave?!? I had in my mind I would work until this kid came out but ohhhh my. I’m barely walking at this point almost didn’t make it up my steps hubby had to help me. I think someone has kicked me between the legs and this back pain is unreal. I’m so stubborn and can’t admit its time to take a break. I’ve never not worked. Anyone else struggling with working?