Hallow Dear, Delayed ovulation should not cause issue in conception. Pease submit yourself for ovulation monitoring. If your follicle is releasing the egg between the size 18 mm and 21 mm, it is healthy egg. Also observe the thickness of the uterine lining (endometrium) at the time of ovulation. Endometrial thickness between 9 mm and 14 mm is highly conducive for implantation of fertilized egg. If the egg is not getting released at this size of the follicle, inj. hCG will help do that. Susten is a progestational preparation and will help stabilizing the pregnancy immediately after conception. Inj. Folligraft contains Urofollitropin. FSH binds to the follicle stimulating hormone receptor which is a G-coupled transmembrane receptor. Binding of the FSH to its receptor seems to induce phosphorylation and activation of the PI3K (Phosphatidylinositol-3-kinase) and Akt signaling pathway, which is known to regulate many other metabolic and related survival/maturation functions in cells. Thus it helps in health conception. I hope this helps you plan your sexual relations around the day of ovulation for better results. Dr. Nishikant Shrotri