Hello Saturday I Had Unprotected Sex, He Said He Didn't

Hello

Saturday I had unprotected sex, he said he didn't cum. The sex was dry. very dry.

Sunday 23 hours after unprotected sex we rushed out to get Plan B(take action)

today is the 4th day after taking "take action"

I went to the bathroom and saw a little tiny bit of blood. I don't want to be pregnant at all.

Is it a good thing or bad thing that I have just saw blood ? My cycle doesn't start until September 22nd.

Am i pregnant ?

Please help! thanks !