Clear Blob Discharge

Hi ladies. I am 10 weeks along. Today I noticed a blob of clear discharge, almost perfectly round but malleable (it can be stretched but returns to its round shape). It was about the size of my pinky nail, so maybe 1/3 of an inch or so? It was mostly clear with some opaque whitish swirls. Should I bother calling my midwife about this? Any idea what this could be?