Could it be..?

Hey ladies. My husband and I are TTC. A few days after my ovulation window I had a increase in discharge. This lasted for almost a week, but it was noticeably more than usual. Today my period is due and for the last 3 or 4 days I have had little to no discharge. This is pretty uncommon for me. My breast and nipples have also been extremely sore/sensitive. For a week now I have had period like cramps come and go. Has anybody else experienced this? I tested yesterday and it was negative. Just looking for some advice!