I'm 38 years old and my husband and I have been trying to conceive for 6 months (first time trying to get pregnant). I am now 13 days past my period due date (was due to start on the 14th). I've taken a few at-home pregnancy tests, the most recently this morning but they have all come out negative. I'm slightly nauseous, moody, my skin is breaking out, I have an increase in vaginal secretions, and am unbelievably bloated. I had some pinkish discharge a few weeks ago but would not call it even close to being a period. Could I be pregnant? If so, why aren't the urine tests reading positive?