Severe pelvic pain! Ouch my VAGINA!!! 38 weeks tomorrow!

This is my last week at work and I am working super hard getting my classroom ready for me to leave. My vagina hurts so bad when I walk and as you know teachers don't/can't sit when teaching! I don't know how my dr. expected me to work until the week I'm due. Has anyone else felt this horrible pain. I can hardly walk, flip over in bed,and constantly having hard belly contractions!!