For a hernia repair, the chances of recurrence in the long term are always present, especially with an impending pregnancy that's being planned. The option given by your general surgeon seems good enough because if you go for a mesh repair and then the hernia recurs, it's difficult to go for a repair without removing the entire mesh again.
Next Steps
If postponing the pregnancy is an option and the hernia defect isn't very large, a laparoscopic removal of the gall bladder along with repair of the hernia with or without a mesh can be done. If the pregnancy planning is imminent, a gall bladder removal with closure of the hernial defect as advised is a good option
Health Tips
1. Physically go and consult a general surgeon
2. Do not lift heavy weights or do strenuous activity as it causes the hernia to increase in size
3. Watch for any signs of constipation, abdominal distension, vomitting or skin discoloration over the hernia
4. If the hernia is large in size, try to lose some weight before getting operated.