Your cycle will be closely monitored with scans and blood tests which will allow doctors to track the maturation of the follicles and tailor your treatment accordingly. Patients ring up on the first day of the woman’s period to arrange the first scan, and most go on to have 2 or 3 over the course of about a week depending on individual circumstances , usually spaced 2 days apart (e.g. day 5, day 7 and day 9). Each scan lasts 20 minutes. The doctor will decide at the scan whether or not you need a blood test. These blood tests check your oestrogen and LH levels, which are hormones that help to assess the maturity of your follicles. By looking at the scans and blood test results, the doctor will be able to keep a close eye on the size of the growing follicles and lining of womb and determine the right time to collect the eggs.