Pregnant. Lower Abdomen And Pelvic Pain, Contraction, Face, Hands And Feet Swollen. Suggestion?

Hi! I'm 29 weeks pregnant and for the past 2 weeks have been having massive lower abdomen, pelvic and back pain. I feel as if the baby is pushing down. I can't bend or lean forward as it causes lots of pain. Sometimes so bad It makes me vomit. The pain hurts on both sides of my lower abdomen. I lost what looks to be my mucous plug earlier this afternoon. I also have been having contractions or what I believe to be contractins as this is my first pregnancy!! I feel the urge to push majority of the time and it is very uncomfortable and painful. I have a hard time at night to get more than 2-3 hours of sleep and my face, arms, hands, legs, especially my feet are swollen all the time! I ache all over. Is this normal because I can't seem to get my dr. to call me back or make time to see me this week or next and I am worried.