A 25 year old lady comes for a post-natal review 8 weeks after a normal vaginal delivery. She is exclusively breast feeding her baby. Her periods have returned so she wants advice about contraception. She is keen to find out the best method which is safe as well, as she is exclusively breastfeeding. She has no past medical history, is a non-smoker and her BMI is 23.
Which one option below is correct advice keeping in mind the UKMEC criteria?