birthcontrol

so on the weekdays i take my BC pill the same time but i have a wierd sleep schedule on the weekends. i normally take my pill at 7 am everyday. but this past saturday i took it at 9 am and then has unprotected sex saturday night. i'm pretty sure he came in me and i'm worried. it was only alittle cum on the beginning but i'm a really paranoid person. then sunday i took my pill around 2ish. in the afternoon. then normal time this week. it's the combo pill and i've been on it for about for a few months. i've gone through about 4 packages and there 4 weeks each. anyone have any tips? please help.