I went away for 4 weeks on holidays, I thought I packed pills but after finishing my packet I was using(while away) I then had ny period as normal and the night before I was due to start my next packet I had sex with my partner. the following day I went to start them and found I forgot them. 3 weeks later now and I'm home.. we haven't had any uunprotected sex since that night and I'm not sure when i should start my pills again... right away or wait until my next period??