This does not suggest hsv. Most primary outbreaks happen at the point of infection. You can not get hsv through a condom.
Describe the pumps and exact location. Was this area covered by the condom?
Doesn't sound like herpes. Your risk was incredibly low. A single protected exposure is almost zero risk. Your bumps do not really match hsv lesions. Almost always the bumps will progress into fluid filled lesions with in a day or so.
Blood work at this time would be useless. It takes more time for your body to produce detectable antibodies. That's what blood tests look for. Not the actual virus. Absolutely do not let your Dr talk you into an igm blood test. Igg only.
The igm is useless and highly unreliable. False positives are very common. Swabbing the bumps and doing a pcr test is a better option as far as testing is concorned.
All in all I do not suspect hsv at all.