Did pull out method use plan b started bleeding then a few days later started to spot a lil not a lot then stop a min later pregnant?

Not likely if you: used Plan B shortly after sex. Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. It can reduce chance of pregnancy by up to 95% if used within 24 hours. It continues to reduce the risk of pregnancy up to 120 hours (5 days) after unprotected sex, but is less effective as time passes.