Working full timešŸ˜£

How do you guys do it if you do it??? I work full time sometimes we have mandatory overtime so I have to work over 40 hours. Iā€™m due March 9th and canā€™t stand to work full time anymore, Iā€™ve asked my job if I could switch to part time but they said no but yet they have an ad out on Indeed for ā€œall positions Availableā€ šŸ˜‘ could I get a dr note that says I need to lessen my hours? Iā€™ve been in the hospital 2xs since December for preeclampsia symptoms, and the second time was just last week.