I'm trying for pregnancy and i have pcod in may doctor asked to me take letrozole but in June I got my period so in June doctor gave clomid along with letrozole and my next period is on July 4th...im five days due to my period... Can i know that i was conceived before missing period is there any symptoms of early pregnancy... I have a very lite cervical discharge other than that no other symptoms was there... Doctor said that if I didn't conceive this month in July she asked me and my husband to take hcg injection... What is the use of it and how successful it is.