3 days period, reoccurred again after 2 days

So it's my first month on birth control, I just finished my 28 days pill 2 days ago and started on a new one just yesterday.

My period lasted for 3 days, I've consistently taken my pill except for the last pill which was 2 hours late. I just got my period again today even though I just finished 2 days ago, is this normal for starting off birth control?