You just started oil pulling so keep going and you will see improvements soon. Check your teeth and you might notice that they will be brighter after several more pulls. Your digestive system will also benefit from it too.
I do an oil pull the first thing in the morning to get rid of all the toxin build-up in my mouth during the night. During cold\flu season, I like to oil pull because I feel that I am cleaning my system from any germs that might be in my system.