Tww- cold sore

Hi I was wondering if anyone had a cold sore during their tww. I havent had one in like 6 years and even then it was due to a high fever and being sick. This time I feel fine no fever or sick at all. Somehow woke up to one out of nowhere. I have read that it can happen in early pregnancy due to hormones. So I am wondering who has experienced this and went on to get a bfp?