Missed period but negative test

Hi! I wanted to see if anyone has had the problem I am having. I stopped using the nuva ring last month, had a period, but have not had one this month. We are ttc.  I am now a week and two days late for my period.  I finally broke down and took a test this morning, but the test came back negative. I know from research that it is common to miss a period after discontinued use of a birth control, but have also had many symptoms of pregnancy such as constipation, nausea, increased emotions, and heartburn. Has anyone else experienced this? I am wondering if I could be pregnant and am just testing negative at the moment, even though I should be showing the hormones. Should I call a doctor or just chalk it up as a missed period because of birth control? Trying to not get my hopes up, as I know most likely I am not pregnant this soon. Thanks in advance for your advice!