Implantation Bleeding?

Me and my SO have been trying to conceive for 12 months now. It will be our first together but we each have a daughter from our 1st marriages. Each month has come and gone the same way... I imagine and AF shows up right on time. This month however, we didn't bd but twice during my fertile window (2-3 days before what glow has my ovulation at). I am now 11 dpo and have none of my normal af or imaginary pregnancy symptoms. However, last night when I went to the restroom I had 2 tiny (like really tiny) red spots of blood on the toilet paper. I didn't think anything of it at first, but today when I wiped the was a brownish clump of mucus. Could this be implantation bleeding? I was 18 when I got pregnant with my daughter (she'll be 10 next month) and we were exactly trying, so I don't know that I even had implantation bleeding.