First period after plan b??

Before anyone comes at me YES I did read the pamphlet, this is my first time needing to take it so real experiences help a lot better. I ended my period feb 25 and took plan b feb 28, I had the week of bleeding 5 days after taking the pill and had some side effects as listed on pamphlet. My period was due March 21 and came as scheduled which surprised me. My question is are symptoms more pronounced and enhanced for your first period after taking it? I typically have sore boobs mild almost to no nausea but this period it's been much more sore boobs waking up nauseous a bit more than mild and bad headaches. I took the pill 19 hours after sex. I just want to know if typical period symptoms are normal to be enhanced after taking the plan b pill???