You can lose your mucous plug sometimes weeks before labor
I called and I'm not having contractions she must said to monitor
U can look it up online to see what it looks like
What does a mucous plug look like
If your having pain/cramping/contractions I'd call other than that you could probably just wait and mention it at your appt. If its bothering you, and you need peace of mind you could call.
I dont think you need to call them. It will grow back. Definitely mention it at your next appointment though
Honestly I would. If he isnt available call ur hospital and see what they say.