Mucus plug?? 29 weeks

Moriah

So two days ago I had. Couple cervical exams at the ER. Now today, (two days later) I lost a quarter size of my mucus plug, and half of it was brownish looking.

Is this likely due to the cervical exams?

Not having contractions, thank God. But horrible gas pains 😌

Kind of worried about pre term labor, thoughts?