Cervical mucus..

This morning I had a long string of egg white cm hanging down after I peed. (tmi sorry) through out the day it has been very clear and stretchy the rest of the day? Is this fertile cm?? I am on cycle day 37. Expected my period on cycle day 34 but it was a no show. And I’ve taken negative pregnancy tests. I miscarried in April so I’m thinking my cycle is getting back to normal?