Hello, My On The 15th Of This Month My Boyfriend

Hello, my on the 15th of this month my boyfriend and I messing around but we never had intercourse. He put his finger in me but I do. Or know if there any fluid or semens on his hand. I took plan b five days later ( suggest by doctor) but my boobs are hurt and my stomach make weird noises. My period hasn't start yet. Should I be worry?