First of all, the transmission of GHSV 1 to a partner through intercourse is rare – I’ve not seen it. And if your partner gets it in the first trimester, there would be plenty of time for her to make antibody as well as pass it to the neonate. If you take daily valacyclovir, transmission is going to be even lower! Also since about half the population has HSV 1, most of it oral, the chances that you will send up with someone who also has HSV 1 is about 50-50 and then you’ll be fine!
Terri