Ovulation help?

Krystin • Living my best life. ❤️

This is my first time taking ovulation tests. We’ve been trying for 2 years but I’ve just used my app and cervical mucus. My dr told me to start using tests and I don’t know what to do 😂🤦🏻‍♀️ when and how many times do I tests I took one today picture show, and I know it’s negative but when should I test again and when do I BD. Sorry I know I sound dumb I just really don’t know and we really want another baby. My 2nd his first. ❤️