Pregnancy question

Hello everyone,

How many days late of period were you when you knew or found out you were pregnant?

My husband and I never used protection and I never got into birth control. We always used the pull out method. But this past 2 months, he would just cum inside. The first two months I would get my period on time. But this month i am 5 days late. What are the chances I could be pregnant ? This will be my first pregnancy if I am.