HL from KKH

I am 23 weeks pregnant currently. But I have been having really bad pain near to my tailbone. Have gone to KKH several times for my pain as I am not able to work anymore. I am currently a nurse on probation.. since I am having difficulties standing and walking for pro long with this pain, my doctors suggested to give me 1 week of HL only. But is it advisable to ask my doctor for 1 month of HL? As some of them say it’s not appropriate. I really need a solution to rest at home with this pain and my drowsy painkillers till my maternity leave. Someone help me please