So i an back with another question. Tmi

This is the first time I ever experienced this. After me and my husband did the deed yesterday I went to the bathroom and when I wiped I was bleeding a bit. Like not even bleeding it was just a little light pink. I'm on clomid so I didn't expect that. My period is about 5 days late if I'm going by what glow said. I had a negative blood test last Tuesday on the 7th and all negative hpt. Well when I went to the bathroom is a little brown when I wiped. Could this be implantation.... this late.... I'm just confused. I have no other symptoms of AF showing and all tests come up negative.