I am 38 weeks pregnant. 2 1/2 weeks ago I was finally diagnosed with SPD (a very painful separation and mis-alignment of the pubic joint) which has been causing back spasms and sciatic pain for a couple of months. After discussing this with my PCP, he prescribed me 40 Lortab 7.5/500 with 1 refill at that time, and told me to call for another refill if I run out. I'll be running out this weekend which puts my average daily dose at 4-5 pills a day. Is this reasonable? Can I ask for a refill tomorrow morning or have I been taking too many?