Do you guys know what I should do?

So I’m a little concerned and I could use some answers maybe someone can help me understand. I been on the same birth control pill for over 3 years, my period used to average about 3-4 days, but last month I lasted 5 days and it was kind of weird to me and Now, this month I’m on day 7 now (today should be my last day because I’m done with spotting) I’m just confused is this normal? Should I go see my OBGYN? Or am I just overthinking? I mean 7 days on my period! Never has that happened. Anyways I could use some comments maybe you guys know what I should do In this situation.