What is this?! 😟

Emilia

I’m 26 weeks and for the past 3 days I have been getting weird discharge like this at least once a day. My discharge is usually clearer or white and more thin and stretchy but this is thick and almost looks like tissue. Is this part of my mucus plug? Should I be worried? My next appointment isn’t until the 23rd. My husband and I have been having sex a lot recently so could that be the cause?