When is the best time to see a Gynae?

i went to the gynae when i was 5 weeks, can only see empty sac 😅 i was very worried back then. Gynae asked me to come back 2 weeks later. So i went back at week 7, can see the yolk sac, fetal pole and hear the heart beat already. I think best is to see gynae after 7 weeks to avoid unnecessary worry 😅