This is my 2nd pregnancy and I'm still going for brazilian waxing. My first pregnancy, I went right before my EDD, so when I was at the hospital and nurse came in to shave me, she was very pleasantly surprised, "hey you took care of it for me!" LOL. So embarassing lah if nurse have to shave and cut for you.
Not sure about infections.. I didn't experience any so far. I go to Honeypot at Raffles Place, just tell them how many weeks pregnant you are, and they will assign experienced therapist to u. My therapist was sooo good, she was done in less than 30 minutes.