Its been 36 days since my last period and no signs of it coming i usually start on the 1st every month use pullout method so far its worked for over 4 years could be pregnant?

It is possible that you could be pregnant. The pullout method is not a reliable form of birth control and there is a chance that sperm may have entered your vagina during intercourse. If you are concerned about being pregnant, it is best to take a home pregnancy test or visit a doctor for a blood test.