Expert Q & A Answers About dental dam

I had oral sex seven months ago and just noticed some bumps on my vagina...do I have herpes?

The last time I had sexual contact with anyone was about 7 months ago. I've never had sexual intercourse; however, I have performed oral sex and had it performed on me (without a dental dam). I have developed a mild itch and redness on my labia majora and I noticed one or two hard, painless bumps on my labia minora. Do I have herpes?