oh, hun i know how you feel and i'm so sorry... mouth/tooth pain is the worst pain in the world! i've even had to go to the hospital before to get help b/c it was at nighttime. i've also had to have a tooth pulled in 2 different pregnancies (both closer to the end of the pregnancy) and all they could give me was novacaine (OUCH!). seriously, if you can't make it until tomorrow, go see if hospital will be able to give you anything for it (that's safe while you're pregnancy of course.).
Is there any chance that orajel may work? I dont know, it may not even cause a dent in the pain, but it worth a shot....