weird thing in toilet 7 weeks pp

So about 7 weeks pp I noticed something in the toilet that looked about the size of a penny, it was gooey looking and had black things on it that looked like a Venus fly trap! At first I thought my husband found a bug and threw it in the toilet but later I was thinking oh no what if it was something from my stitches i had internally? Should they have already been dissolved? Does the entire stitches dissolve or no? I didn't take a photo bc I didn't thing it was from me but now I'm worried and can't stop thinking about how weird it was! Anyone else have anything like this happen?