Prego 👶👣

Hi girls please help so i have a question i did a pregnancy test at home and it was positive im trying to know how far long am i or when will i be due but i am confused because on dec 3 i had my regular menstral period whiches 7 days my period came on jan 1st of 2016 but it was only for two days n it wasnt heavy how it usually comes so when is actually my first day of my last menstral period ??? Help help please