pushing maternity leave ?

I'll be 38 weeks and 2 days when I start my maternity, I feel like I'm pushing it, my due date is June 13th and to be honest I didn't think I was this close to having the baby... but I really do need the last paycheck so should I keep it at June 2nd or leave a little early ? I'm only 34 weeks and 6 days and I've been more tired and just feeling like shit... and just can't wait till I get home to sleep, also the cramping and backache is getting worse and plus my blood pressure has been high with every little thing I eat and this just started, And Idk anything g about preeclampsia ..
Plus, I don't have a doctor to go to anymore.. so I'm worried that I'm really pushing the timing and risking alot...