Took pill late, pregnant ?

I was suppose to start my pill Ortho Tri Cyclen on Tuesday 13th I forgot and didn't remember till Thursday 15th . I took Tuesday and Wednesday's  Pill Thursday morning, then Thursdays pill that night, then woke up vomiting at 1:30.  also my Ovulation was around 13th to 17th 
​I had intercourse on the 17th and 19th. Now I'm wondering if I could pregnant and should I stop taking the pill or just continue. I've been feeling nauseated all day ... I'm thinking due to hormones?