Helpp!!!

Maria
Ladies I need help
I had my period on the 20th to the 24 and I had unprotected sex on the 25 so I end up taking the morning after pill Plan B and today I just liked somewhat started my period but it's like brown discharge is that normal can you be side effects because I was not supposed to start my period until like the 20th again and I'm like kind of scared and nervous!!!!!!