Late period/negative test

Michelle
Hello! I am 27 years old and my husband and I are trying to conceive! I've been off birth control since April and we have only been trying to conceive since October. I have had some abnormal periods, which is to be expected coming off BC, but they have worked themselves out over the last 3 months. I am currently a week late (and I'm never late) and i have taken a pregnancy test that was negative and an ovulation test that had a faint line (not as dark as the test line.) I'm having other symptoms as well..sticky CF, sore nipples, increased appetite, and fatigue. Just curious if a negative test is pretty definitive after being a week late? My husband and I are excited, but at the same time, don't want to get our hopes up! Just looking for some insight!