what's the possibility??

So I've been on the pill (minastrin) for about three weeks now but I had just started taking it at the same time everyday for about 6 days because my doctor had told me I could take it at whatever time, just as long as it was everyday. But then I went on the pills website and it said same time. Yesterday I used pull out (he never came before or even in general) so could there even be a possibility of me getting pregnant?