Help please

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've been doing ovulation tests for over a week now. All negative. My last period was August 4th. I'm irregular so I've skipped random periods before. I went off birth control August 26th. I tested my CM a few days ago and it was egg white consistency. I'm on day 3 of my left ovary being tender. Am I ovulation? Pregnant maybe? I took a pregnancy test this morning and it was negative. I know this seems jumbled up. But I'm just looking for some advice. Thanks.