Ovulation testing

Jackie • Hello! I`m 31 years old. I have a 7 year old son and a 3 year old daughter. My hubby and I are trying for our 3rd baby!
I'm very irregular. Haven't had a period since August 4th. Only been off birth control since August 26th. I've been doing ovulation tests for 10 days! All negative. I'm getting frustrated because my CM was like egg whites on September 9th and I've been slightly crampy and had tenderness in my left ovary. But...all negative ovulation tests??