Help!

I have an 11month old daughter. 11 months na Rin akong walang menstruation. Sept 30 bigla akong dinugo pero 1 day lang tapos biglang huminto. I remember ganyàn nangyari sa last pregnancy ko so I got worried. Last contact namin ni mister ay almost 2 months na so I decided to do PT. Nagnegative siya. What do you think mommies? Maaga ba ang PT ko? May chance b n pregnant? I am worried.