Mild amount of bloody discharge after the two weeks of cercalage

I am 20weeks pregnant and I had cercalage almost 3weeks ago. In the morning I went to the toilet to poop but I found watery bloody discharge , I had same discharge before sleeping when I went to the toilet I found it again while wiping .I am having progesterone pessaries twice a day . I am upset if the stitch has been torn or anyother problem is going on .please let me know if anyone has faced this issue. I really want to feel calm .