TMI : Vaginal discomforts!

I'm currently 28 weeks pregnant and I've been having some discomfort around my vagina. The outside (on my lips) it looks dry and flaky. It also feels irritated and I'm guessing it's because of my panty liners. Not only is the outside irritated, it's also itchy. The inside near the entrance of my vagina is also a bit itchy and a little bit on the inside as well. Could this be a yeast infection or is this just because I'm dry down there?