Need Major Constipation HELP!!

So i need some advice. Im 10 weeks along with my first and the morning sickness was so bad i got a script for nausea. I only take one a day. Since ive been taking them, i havent been able to poop for over a week. Ive made an appointment with my doctor but it isnt til NEXT WEEK! Its gotten to the point where its causing major discomfort. Ive tried having anal sex, drinking prune juice pretty much everything i can think of. Any other ideas?!!