Hl working in retail

Im currently 25 weeks pregnant im so tired i work retail n my back is aching.i alrdy finiah using all my mc and now im currently using upl. Im not sure if i can get HL this early yet. Im under the goverment route this time so im not quite sure how easy or hard it is to get HL. Being in retail my back sometimes hurt and affects my leg whuch will suddenly jam while i walk. For me its a fall risk to n my retail store have quite a lot or sharp ended tables near to each other so what do u mummies think....