Implantation bleeding at 7/8 DPO? TMI

So, I posted this over in 'TTC in your 20s', but had forgotten to add that I am 7/8 DPO. So I figured I'd give it a go on this board... this is our first month TTC and we had sex every day during my fertile window. I ovulated around last Wednesday and then this morning we had sex. Afterwards I went to use the bathroom and there was the littlest amount of bright red spotting when I wiped. Just looking for some opinions, or if anyone's ever had a similar experience. I've never had any kind of spotting or bleeding after sex.