Bodily Confusion

Caitlin • Age 23, married and ttc after late term miscarriage
This post might be considered TMI. 
My last period was normal and my cycles average 25 days. 
A few days ago I had a strong positive ovulation test. Thankfully, we had sex twice a couple days before the peak and again at the peak of my ovulation. Two days later (today) I'm bleeding lightly. Not pink, but red. 
​Why am I bleeding? I couldn't have gone 10 days and then had another cycle... Could I? The timing is so short and the flow seems too heavy to be "implantation bleeding"
Answers would be greatly appreciated if anyone has experienced the same thing.