The same precautions you now take such as not having sex during an outbreak would be best. Also using suppressive therapy will help reduce the number of shedding of the virus during a non symptom breakout.
The only other way I could think of would be IVF maybe.
if you are on daily suppressive therapy and avoid sex anytime you have genital symptoms, she's 95-96% likely each year not to contract hsv2 from you. Very reasonable odds.
grace