Period twice in a month

Celeste

So I had my period 2 weeks ago, I had sex the day after it went off & took a BC pill later that night, haven’t used my BC since November also, then I took another Saturday night. Last Wednesday I started bleeding again, well it started off as spotting then went to a light flow. Today I am still spotting. Did I possibly mess my cycles up by taking that BC? I was told that 2 BC pills work the same as a Plan B pill.