I am 38 weeks pregnant and have been losing my plug for over two weeks, now i have lower back pain and nnausea what should i do?

Call you OB: Passing the mucus plug doesn't mean a whole lot, but a lot of women assume they are passing mucus plug and instead its meconium stained fluid. Call your OB/midwife and tell them you've been leaking something and may be having early labor. You probably need to be placed on the monitor to check for labor and examined to see if its fluid and to see if cervix dilated. Call this morning!