So I am 22 days late my husband and I have been trying since this past June my periods are very regular never missed one except once when I was pregnant with my daughter. Anyway I've taken about 4 hpt but all negative I went to my primary doctor and she tested my urine negative and then sometime yesterday I started having brown blood coming nothing red but enough to need a panty liner is this my period or should I schedule a blood test I had a similar thing happen with my daughter but not exactly. Any insight on this would be greatly appreciated