Hi, I had unprotected sex just under 3 weeks ago and took the morning after pill the next day. About 2 weeks later i had a period, which was quite light and only lasted 3/4 days. I should usually be on my period at the end of the month but i've heard the morning after pill (Levonele) can cause this to happen and/or mess up your periods a little. Is this normal or should i be worried? I've also had sore/itchy boobs but this coincides with buying a new bra recently which i know doesn't fit correctly, so not sure if i am just panicking! Please help.