Plan B experience

Hey you guys! I wanted to know if what I’m dealing with is normal. So I took a plan B on June 23rd because of a broken condom and even tho he didn’t finish inside of me I still had the “pre-cum can get you pregnant” scare so I took one on day 3. I had been feeling cramps, spotting, and headaches and really the whole ‘9 yards’ of the pregnancy symptoms. My expected period was supposed to be July 4th but it came an entire week earlier than expected. On June 28th (which was the day it came) I also started my birth control patch because my OBGYN recommended me to start on the first day of my period. Usually my cycle only lasts a good 3-4 days but now I am going on day 9 but I haven’t experienced my usual horrible cramps at all throughout the whole thing and I was wondering since I just started birth control after taking the pill if all the hormones running through my body could be the cause of this extra long and heavy period that I am experiencing. Please help!