Should I be nervous?

Hi everyone! I'm just going to cut to the chase: I've been on birth control pills for about 2 months now. I took 2 placebos at the end of my pack but decided to just start the next month's pack. I got my period on July 31, and have been on it since. It's not heavy like my usual period though, it's light. Is this something I need to be concerned about? Should I go to the doctor? I've never had a period for this long before. Thanks in advance!! xoxox ❤️