I had my son January 19 and I got on Mirena about a month after. I stayed on it for about a month as well ( I did not like it so I got it removed). On Mirena, I was bleeding and when it was removed I was still bleeding. A day after the Mirena removal I started Mononessa. I've been taking it for 4 consecutive days, punctually at 5:53 pm but on the 4th day a few hours after taking the pill, had unprotected sex and my boyfriend "came" half way in. How protected am I from pregnancy?