STDs or normal?

I have been noticing some pimples come up on my vagina in the past 2 months. It started with one, and now has gotten to about ten. They are not open sores, and are not cauliflower-like. They look generally flesh colored, with the occasional one or two white head ones. I have noticed a few that have been there and gone away, but for the most part they just stay there. I have thought maybe I’m not cleaning as well since it is summer, or my razor is too old and re shaving is making it worse, but I’m starting to get worried.