6 days late, not sure what to do next.

Tasha

My husband and I have been ttc our 3rd child for the past 5 to 6 months. This month af is 6 days late. Took a test 1 day late negative, this morning another negative test. Not sure what to do next, never been this late before. Not sure if I actually ovulated when the app estimates the window. Never used ovulation tests yet, but want to try asap if I'm not pregnant. Thank you in advance for an advice or input