That is one of a number of possibilities, including yeast, scabies, folliculitis etc.
The best indicator would be if there is white pus present in the sores, which is much more in keeping with those conditions mentioned above than herpes.
is it possible that it could be molloscum contagiosum?
I had unprotected sex with a guy last week, but I am pretty sure he doesn't have the virus as I know that he has never showed symptoms and his previous partner of 3 years tested negative for the herpes virus
I think you need to present to a doctor immediately and demand a swab test that includes looking for HSV (preferably using PCR).
What has been your sexual history in the 2 weeks leading into the blisters appearing?