For 10 Days I Had Light Mid-cycle Bleeding, I Believe

For 10 days I had light mid-cycle bleeding, I believe it started during when I should have been ovulating but I didn't take an ovulation test to make sure I ovulated. I am 26. My husband and I are TTC. I used to have regular cycles, around 26-28 days, with my period lasting 4 days or so. Recently, my periods have been about 30 days. About a week ago, I took 2 HPT's (3 days before AF was expected) but they were both negative. At that time the bleeding had stopped. We left the country the day AF was supposed to start, and I am now 5 days late. My cervix is high and hard, and I had light EWCM for the last couple days. My concern is that I did not ovulate. Could I still be pregnant? Are these prolonged periods something to be worried about? I haven't gotten a chance to purchase a HPT yet. STD's are definitely not a factor, and we are both in pretty good health.