So I had sex on Oct 22 (my first day of period) and I was bleeding normally that day. But I took plan B later that day because I let him cum inside of me twice. After I took that pill, on Oct 23, my period became really light but it still had blood but really lighter than 1st day. Did my period became lighter on my second day because I took plan B? I'm a regular too and my period always come during expected dates. Thank you.