Plan B Yellow discharge??

hi all, i was hoping to get some feedback if anyone has had a similar experience. my periods are regularly (26-30 day cycles). my last period was 4/11 and i am predicted to get it 5/9. my bf and i had unprotected sex 4/29 which would be day 20 of my cycle. i took a plan b 4/30 almost 24 hrs after. this morning 5/1 i had very clear discharge. however as the morning went on my discharge is yellow and creamy/ sticky. i searched on google and it said if it didn’t have a foul smell combined with itchiness i should be fine. what does this mean?