Plan b

Was unsure what group to put this in, second post lol

What’s the longest anyone has had mild/light cramps after taking a plan b? I understand the side effects (experienced some not all) but I Took one on sept 2nd and bled 7 days later. Brown spotting like a period that eventually turned red, that only lasted 4-5 days. I am still experiencing temporary light cramps🤦🏽‍♀️ and feeling very regretful as I wait for my next period. No sore breast btw just in need of advice. Google is no help 🙄