please help me....sorry if this is TMI...

i have had constipation on and off throughout this pregnancy and i have maintained a very good fibre diet and it's been working well except maybe the odd occasion, but yesterday i noticed my bowel motions were quite painful and now i have pretruding haemerroids.
i've read this is a very common prob during pregnancy so what can i use to get rid of them. i am utterley embarresed, not to mention i have a 36wk anti natal appoint next week with a new dr and would love them gone by them (ha ha ok maybe not possible) but i'm worried about giving birth and having them...