Not using opks this cycle

Is anyone else just going with the flow and not tracking this cycle? I decided to do that. I'm more less stressed this month. On Sunday I had a lot of ewcm and it was just on that day. Today I decided to take an opk and it was a low reading. Now I'm wondering if I ovulated yesterday or today. I'm thinking about testing tomorrow to see what it'll say. I normally have ewcm and ovulate 1 or 2 days later. I understand if I'm not using bbt then I can't really say I ovulated.