My fiancé and I weren't planning on a baby so when he pulled out I took four lutera pills then when reading about it more it says to take 5 then 5 again in 12 hours. we had unprotected sex twice after, and then on cycle day 15 I start to bleed but it wasn't like a normal period it was very brown very light only red pink the first day. Would it of stopped my ovulation completely, delayed it or could I be pregnant?