New to Ovulation tests

Cmcg

Hi everybody. I am new to the ovulation testing and just wondering if you could give me some advice. I thought the test that you’re supposed to urinate on and it gives you the two lines. But I’m so confused as to when to start testing, how many times during the day, and to see how accurate it really is. The problem is if I test during the day like it recommends I am at work and I find it a little embarrassing to carry a test around like that. Any suggestions?? Thank you so much and best of luck to you all