Well man when did u pollinate her?
Its best at week 3, day 21 for me.
After u pollinate her u need to spray down everything with water. All over the plant and every where in the room.
Also don't wear the same clothes when messin around pollen and going into a sinsemilla room. Pollen is very easily carried by wind, animals or people.
After she is pollinated u'll notice a stop in growth. The THC production will slow. The plant is then putting all its energy into making seeds. And since u'r new to breeding I suggest waiting as long as possible to cut down the seeded plant. It takes time for the seeds to fully mature. I let my plants go an extra 15 days, just to be sure I don't have premature seeds.
Hope I helped
MJ