Hospitalisation leave

How to ask or tell for 1 week HL? Im 36+ weeks now, on subsidised route at kk. EDD is just like what? 3 weeks ++ away? I already planned my leaves swee swee but I didnt realise I needed to start earlier because I didnt know I would be in this constant uncomfortable state. Like, legit need to be hospitalized or ask for long MC because Im just tired from walking short distance & back ache, sciatica & pelvis pain & coughing because of heartburn. I know this is normal to have all these symptoms, as long as baby healthy but why not the mother? Mother also needs to be healthy (physically, mentally & emotionally) . Government should give more than 3.6 months of Maternity Leave so that we can start ML at 8 months onwards and not giving us option to start 1 month before EDD. We should be able to be physically,mentally&emotionally ready to go back to work too. This post is honestly a how-to question and a rant since this is my 1st time expecting.