Hi my names Nicki and im 18 years old, i have irregular periods and have done for some time now. im trying for my first child but having some difficultie knowing when the best time is to have sexual intercourse, ive got an idea of when i ovulate but uncertain. i asked someone when do you know when you are ovualting and i got a relpy that its when the white cramy gunjy stuff comes out not long before you are due your period! but the problem is that when i think i am ovualting the next week i dont come on my period!? i dont understand it clearly and have no family to explain it to me :( could someone please help me ? thankyou Nicki xx