39w0d: mucus plug or bloody show?

Yesterday I lost what I think was my mucus plug and today had something similar but lighter and a tad smaller. Now I don’t know if it’s bloody show?

I have been feeling tightness, but no painful contractions. Apparently Friday evening I was having them 5min apart, but not really feeling much. I also had a membrane sweep on Friday morning.

Thoughts? Anything I should be doing? FTM here! Baby has been measuring in the >95th percentile for weight since week 28, despite me gaining only 15lbs by week 39. My mom was the same way for all three of her kids.