im m 27yrs old,unable to conceive ,in2009 iwas diagnoise suffering frm pcod,now my doctor has given me,metaformin,ebixid,evion,follivite, evecare medicines.i m going 4regular walk 4 30-40 min.will it help me to get pregnent. how many times i should have sex. my doctor gave me letroz on2nday of menses(5.06.2011).