Will you get pregnant if you go in and come out immediately? – Revealing misunderstandings about contraception. Many people have various misunderstandings about contraception, which not only makes it difficult to obtain safety and comfort during sex, but may also cause harm to health. This article will introduce several common contraceptive misunderstandings in terms of efficacy, usage, side effects, etc. to help everyone establish correct contraceptive awareness. Myth 1: Pre-insertion and post-insertion oral contraceptives are equally effective Oral contraceptives Of the latest generation, 92% are ethinyl estradiol/nordydrogesterone oral contraceptives