Please help

So last month I missed 2 days in a row of my bc and started my period early and it lasted a week and a half. This month I haven't missed a single day and with the schedule of the pills I was supposed to start 2 days ago. I'm getting really paranoid and thinking of the worst. Can someone please calm my nerves and tell me I'm gonna start late or something and I'm not pregnant.

Edit: just took a test and I'm not pregnant! Definitely a good thing considering I'm 17.