WOW!! This Is Odd

Love

Hello I have been trying to conceive with no luck since Dec 2016 after our loss I believe I ovulated the 29th of December not confirmed only by way of glow. Yet today what I believe to be 3dpo there was some light bleeding after DTD I’m almost sure it’s to early to be implantation bleeding yet this has never happened to me looking for insight or anyone who has had these symptoms & had something positive come out of it ? Thanks