IM SORRY TMI - implantation bleeding?

Hello, I was supposed to start my period about 3 days ago and I’m normally always on time. Early this morning I started spotting and it was pink when I wiped and there was a little bit in the toilet so I put on a pad and it was a brown/pink color but I’ve been been wearing the pad for about 5 hours now and there is barely any blood on my pad. I ended ovulation about 13 days ago and my last day of ovulation I had unprotected sex. Could I be pregnant? Would it be worth taking a test right now? Not sure if I am allowed to add a picture, if that would be more helpful please let me know. Thank you