A Cochrane review has found limited evidence that immediate (‘quick’) start of hormonal contraception reduces unintended pregnancies or improves continuation None of the studies included in the review were powered to detect contraceptive efficacy. Whilst there is currently a paucity of evidence demonstrating effectiveness, there are data to suggest women find quick starting acceptable. It is possible that effectiveness may vary depending on method type. Two studies investigating immediate start of combined oral contraception (COC) versus conventional start did not demonstrate any significant difference in pregnancy Another study showed no difference in pregnancy rates when comparing quick starting the combined vaginal ring (CVR) and However in.
