Pregnancy - Second Trimester

At about 2:30 pm I stood up at work and had an excruciatingly sharp pain coming from my left lower abdomen. I tried standing in my cubicle for a while, then walked to the bathroom (holding my side and obviously looking pained, because several women followed me in and asked if I was in labor). I walked around in the bathroom for a good 20 minutes, but the pain was not subsiding. I checked and there was no blood or other discharge so I went back to my desk to call my mother (of course). Mom told me to call the doctor. The doctor ordered a urinalysis and then bed rest for the rest of the night. If the pain didn’t subside or if there was unusual discharge or blood they said to call.