Ovulation/mid cycle bleeding?

So my cycles are finally starting to return to normal after having my son almost 11 months ago. I am about mid cycle, Saturday I had ewcm. Pink pad says I will likely ovulate today. My period ended about 12 days ago and this morning I woke up and was bleeding, not much, but enough to saturate a light panty liner. We are trying to conceive, we last bd on the 18th. my periods are often irregular, but I've never had bleeding mid cycle like this that I can remember. Anyone had anything similar?