Miscarriage?

So I got my rod implanted like 2 weeks ago and had ALOT of unprotected sex 3 weeks ago.

I got my period 7 days late, it started really light and progressively get heavier, today I pulled down to underwear to change my pad and there was this tough skin embrio like thing in my pad, I thought that there was no way I could of been pregnant but out of curiosity I searched up miscarriage in pad, low and behold what was in my pad cane up as an image titled 3 week miscarriage. I have attached the photo of what was in my underwear and was wondering if someone could please let me know if I had a miscarriage, would mean the world to me xx