Thanks for the help. The doctor and the leaflet say that you are protected as soon as you start taking the pill on your period so I was safe at the time. And when I have sex i do use a condom despite this. Hopefully it will be negative. Fingers crossed.
Any time you miss taking your pill, it puts you at risk for pregnancy(if you are sexually active). Also, most pills take about a month to become effective and you should be using a second form of birth control until the hormones from the pill are in your system. It's not likely for you to get pregnant from the scenario you described, but if your period is late, take a home pregnancy test to find out. Then use this as your learning lesson to be more careful next time.