How can I ask??

Please don’t judge me because I am miserable... but is there any way you can ask your doctor to have the baby early. I know there’s a big debate about 37 or 39 weeks being full term, but I just want to be done being pregnant. I am blessed with a baby and I’m grateful for it, but this has been the absolute worst time of my life. My legs swell up to the size of my neck, and I’ve never been so exhausted in my life. I throw up constantly, and my work won’t let me start maternity leave early unless I’m released by a doctor. And even at that it’s unpaid, so i want to spend as much time with my baby as possible and I only get 6-8 weeks.. I’ve constantly gone to the doctor with my issues of swelling and exhaustion and they have done blood tests and they’ve all come back normal, but I’m telling you all I think something is wrong and I just want to be done 😢