ovulation?

Kristen
My husband and I had sex last night be cum in me and when I woke up this morning my cervical mucus was egg white clear and stretchy I was wondering if this was from him from me or both or if it's me ovulating if I'm fertile right now my cycles are 28-30 days I'm on CD 18 going to take an ovulation test today I took one yesterday but it was negative but then again my tests are from the dollar store 🙈