The Paragard, Mirena, and Liletta IUDs are the best at preventing pregnancy ... ella can be harder to get than Plan B because you need a prescription. An IUD can be hard to get within 5 days because ...

Timing. An IUD can be safely inserted at any time during the menstrual cycle. Traditionally, clinicians have been taught to insert an IUD during menses because the patient was very unlikely to be ...