How soon after losing mucus plug does labor start?

Hi ladies, I'm a mom of 3 but feels like I'm starting over since I have a gap of 7 years from last baby to this one. I have a silly question at this point but here it goes...... typical how long after you lose part or all of your mucus plug does labor start?

I don't recall losing my mucus plug with my other children and curious on others experience. TIA