How do I use the Nuvaring®? Insert the first ring on any day from day 1 to 5 of your normal cycle. Day 1 of the cycle is the day your normal period starts so day 5 is 4 days later. If you insert the first ring during day 1-5 of your cycle then you are protected against pregnancy immediately If the first ring is inserted at any other time in your menstrual cycle, you will be protected from pregnancy only after it has been in place seven days. To insert the ring, squeeze the ring between thumb and index fingers, then insert into the vagina. Your vaginal muscles will keep it in place, even during exercise and sex. You do not feel the ring once in place A new ring is inserted into the vagina every four weeks. After insertion the ring is left in place for three weeks, then removed and a new ring inserted a week later A monthly bleed (a withdrawal bleed) occurs in the week when there is no ring in place. It is important to replace with a new ring no more than seven days after removal of the previous one. While many women prefer to have a regular period it is possible to delay or avoid a withdrawal bleed. This can be achieved by using the ring continuously, and inserting a new ring straight after taking out the old one Though it is not recommended, the ring can be removed during sex if desired. If removed it must be reinserted within three hours to maintain contraceptive protection.