Ovulation

Can anyone help me?! I don't seem to have had a surge? I have been testing everyday since AF as i wasn't too sure when i ovulated     It was my first time using OPK's so i'm not sure if i have being doing anything wrong or if i have just missed it. Starting to feel really down about it all now 😢😢😢. Picture attached. Baby dust to everyone ❤️💙❤️💙