Confused 🤷🏾‍♀️😳

Kiyah

Okaay so I’m kind of confused on the whole day past ovulation for me would the first day past ovulation be on the 27th or the 28th ? When should I start having symptoms if I were to be pregnant? & when should I actually test to see if I am pregnant?? Sorry for all the questions I just need some clarification on some things .