How far along are you? From what I was told, they do c sections only if you have an active (sores) infection at the time of delivery. Sores can stick around up to 2weeks. Simply having the virus won't require a csection. Because I get very regular cold sores (basically the same virus but different area of the body) I have been taking valtrex or acyclovir throughout the pregnancy to prevent an active infection. Safe to take and I'm guessing that's what they'll do for you too. Unless you are very very close to delivering, you should be ok to deliver how you wish. The meds work well.
I'll be 32 weeks Thursday. My boyfriend has type 1 which is anything above the waist and I possibly have type 2 which is below the waist. Still crossing my fingers it comes back negative, but I'm sure its a slim chance. I've heard while being pregnant you could have more flare ups. I just want everything to be clear in time.
I was averaging 1 cold sore per month before starting the meds. I am 31 weeks and have only had one very small one (from a day out in the sun without lip protection). Generally, you are right and type 1 is above the waist. BUT! Not always. My doctor said you can start with a mouth sore and then through oral s ex, transfer it below the belt. My husband and I completely avoid oral when one of us has a mouth sore just for that reason. So you could have gotten it from your bfs type 1 if he wasn't careful.
I would get an appointment with your doctor and ask to start maintenance meds right away. You should have enough time!