36+5 is this my mucus plug?

Melissa

I’m 36+5 and I’m pretty sure this is my mucus plug... what do you guys think? Should I call my ob? When I was 36+1 I was at l&d with contractions and was told I was dehydrated and gave me water and they slowed down.... I was at a 2 and 50% effaced... what do you guys think? Should I call my ob? Or wait? Or should be be exspecting labor to start soon?