My boyfriend and I had unprotected sex on December 26th. He did not cum in me but I was still a bit scared so I took the Plan B one step pill the day after I had sex. After that I started getting spotting but it lasted like 5 days. I then got a pinkish-brownish discharge for 2 days. I should be getting my period this week on the 14th. I don't know if I should be worried or not?