Should I be concerned if I dont get my period?

This is my first month on this birth control. I’ve missed two pills this month but not right after each other. They were about a week apart. Then i started to bleed lightly for a day after i missed the first pill. After the second missed pill I started at a parade and had to wait to go to the bathroom. It seemed heavy but i dont know if it was because i had to wait, plus i had a few little blood clots. After that i was light. I couldnt use a tampon, i had to use panty liners. It last about 5 days. That was last week, and now this week im suppose to start my period, but im already a day late. Should I be concerned?