So you are 10 days late? Have you taken a pregnancy test to see if you are pregnant? And the idea of using birth control pills to stop a pregnancy, well many people continue using bc when pregnant because they dont know they are pregnant yet. It is not a good thing to use while pregnant, it wont for sure cease the pregnancy, it might continue as normalish as it can, and you might give birth to a mental disabled or disformed child.
Find out if you are pregnant and then go from there about finding information about your options. I would encourage you to really look into adoption, mainly because I know so many families who have benefited from it. I dont know your situation, and it is your choice...But im pro-life, so im always looking for a better way.