Pains when walking at work

Andrea
Anyone else had to stop working early? I'm 6 months pregnant and I keep getting stomach pains when working And when I sit I'm fine but at work I'm constantly walking back and forth in a big store and I'm in pain. I seen the doctor 2 weeks ago and  told him I had pains but not like they are now and he said I would loose my insurance if I went out of work too soon.Is this true?