Missed birth control pills

This is probably really stupid but it’s never happened to me before. I have been on the birth control pill but was scheduled to get the iud the week of my placebo pills when I start my period.

Long story short I didn’t get the iud.

I have one more pack of my pills left before I can make a decision on what I want.

The problem is. My period ended a week ago and I didn’t start the pills. Can I still start the new pack? Or do I need to wait another month until my period comes again?