Dpo????

If I got my peak opk at 4am yesterday. Would today be considered 1dpo. I know that you get your surge 12-36 hours before egg is released. But at 4am this morning I was back to having negative tests where the test line was hardly there. At 6am this morning I had pain on my right side and my stomach felt like it had a lot of pressure. Would that of been the egg being released around 6am this morning? Putting it 26hours since I had got my peak test? This all confuses me and I dont want to mess up my days so I know how many days I am to test.