I went a month at a time without pooping when I was pregnant with my first baby. Let me just say right now. DON'T LET THIS CONTINUE. You've gotta do something. First, accept the fact that it probably WILL hurt when this finally comes out. Second, drink extra, extra water. Now, don't go intoxicating yourself with it, but drink as much water as you comfortably can. Third, prune juice... Try to gulp plenty of that down, but it will take a day or two to work. So, let's see how desperate you are. Next, ask your doctor if you can take some Colace. My doctor considers it completely safe throughout all of pregnancy, and I take it most days to keep myself pretty regular, but it is not foolproof. It takes about 3 days to make me "go," and you cannot wait another 3 days. However, I take the stool softeners before bed only on the days that I poop so my next-in-line is nice and soft. If you still haven't pooped, while you're on the phone with your doctor, ask if you can take Milk of Magnesia. It is gross. Chalky. Coats your throat and feels like you can just never get the taste out of your mouth. It thins out your poop into water. And if you take it, don't trust any farts, TRUST me on this. Do not. Trust. Farts. It is a last resort, and it makes some people feel nauseated, but you will poop within 12 hours of taking it. Take it, then drink lots of water. The first time I took it, I was a week backed up, and I went in an hour after taking it. If Milk of Magnesia doesn't work, then... I'd really hate to think of what's in you. MoM is 99% foolproof (and 99% gross).
Goooooooooooood luck!