It happened to me with my first. I didnt want to use panty liners because it is very uncomfy for me so i usually bring extra underwear at work. And i put some small cover on my chair just incase
I didn't face this..but you have to try kegel from now on..it will tighten up your pelvic muscles..and it will help you with the problem
9 weeks a bit early to have incontinence issues. Try to exercise your pelvic muscles with squats and kegels
Pelvic floor exercises can help