Tears and stitches

I’m not sure how to explain this. I’m 3 weeks postpartum and finally got the nerve to take a mirror and look down there. If I had ripped stitches a while ago would I have known? I just feel like I did not have an “opening” that far down to my butt. I don’t want to sound uneducated but I genuinely fear that I’ll be too “loose” later on if everything did not get stitched back up together. Everything also still looks swollen and red... ugh 😖