Hello I Have Irregular Periods... I Had Sex With My

Hello
I have irregular periods... i had sex with my boyfriend on nov 5th with protection .. my due date of period is on 11th nov ... not yet had my periods .. is there a possibility of pregnancy ... is so then what can i do to abort that.... i have not taken any test .. and my vagina feels dry ... when i used to do elliptical i get some white discharge ... please help me ...