Hi My Name Is Jasmine. I Am 17 Years Of

Hi my name is jasmine. I am 17 years of age and I had to have an abortion. The abortion occurred Jan 14,2016. I had my first period the 13 of March and due to my pink pad an app to help remind u your next period I was supposed to start the 10th of this month. I'm three days late. I took a pregnancy test five days before the tenth becuz it was a five days before expected period and came negative But I'm starting to worry a little is this normal?