I'm on the ortho patch for birth control and my patch change day is mondays. Weeks 1 2 and 3 i correctly placed them on me as i always do. but during the third week i didnt take my patch off on monday, i forgot. i took it off tuesday morning...this is the fourth week which is wen im suppose to get my cycle. its been comin on time wed/thurs morning, for instance when im sleeping. but its late and i was wondering if takin off the patch late made my period late..i am sexual active and very curious to if i could be pregnant..