 [ Symptoms ] scoliosis in adults if u had scoliosis as a child and did exercises to help the curvature of the spine can it effect u later in life as an adult chronic lower back pain [ Disease ] most helpful answer yes you definitely could have gotten pregnant you should be alert for a missed period because if you are pregnant you should remove the nuvaring as soon as possible after you know positively you are carrying a baby like any other type of hormonal birth control method such as birth control pills the nuvaring typically takes a month to be considered fully effective since you did not wait for the required amount of time before having unprotected sex it is possible for you to have become pregnant that said it is less typical to become pregnant while you are on your period a woman is most fertile likely to become pregnant a couple of days before her body releases an egg ovulates while that time frame is different for every woman it generally occurs around days 13 15 for a woman with a regular 28 day menstrual cycle the answer to your question then is it is possible but not likely you got pregnant when you had unprotected sex the same day you inserted the nuvaring if you ever have questions about your birth control method you can always ask your pharmacist or your gynecologist wishing you well