It is recomended to use an unhormonal contraseptive during the 1st 7 days of a 21 day package.I m newly married and 1st time user of LOETTE nd hv started 2 take it fm the 1st day of my mnstral cycle..But I had an unprotected sex on the 4th day.Now what should I do?Is there ny chnce of pregnancy?IF yes,then what should i do 2 prevent it.Pls suggest me.