CERCLAGE DISCHARGE HELP

Hi ladies

So I had a masssiiiivvee amount of blood tinged discharge on friday night and I think it was my mucus plug. Doctors don’t seem concerned as my stitch is still very tight and in place. I have funnelling above the stitch

I am still having sometimes clear sometimes tan or blood streaked mucus discharge when I go to the toilet

Is this normal and what were your experiences? I’m only 21 weeks and really really want to make it to term