Mid cycle spotting?!

Regina • Vet Tech🐾 Pitbull Mom 🐶🐶 PCOS 👼🏾8.23.17
So my last period was February 27th- March 4th. I think I have already ovulated due to the cramps I usually get around that time. (We've been ttc for almost a year now so trying to do so without all the stress of tracking everything) That was about 3 days ago. When I woke up this morning I had a little brown spotting in my underwear & a tiny bit when I wiped. I have also been having some mild cramping all day. When I went to the bathroom just now the spotting was pink but still light in quantity.. Anyone experience anything similar in the past or have any idea what it could be? I've had mid cycle spotting before but nothing like this.. Period due March 30th