Which contraceptive method is specifically designed to regulate the menstrual cycle?

The birth control pill is specifically designed to regulate the menstrual cycle. It contains hormones that work to maintain hormonal balance in a woman's body, which can help establish regularity in menstrual cycles. By providing a steady level of hormones, the pill can help reduce menstrual irregularities, alleviate symptoms associated with premenstrual syndrome (PMS), and even manage conditions such as polycystic ovary syndrome (PCOS).

In contrast, other contraceptive methods like the intrauterine device primarily focus on preventing pregnancy rather than regulating menstrual cycles. While some might experience changes in their cycle with an intrauterine device, it is not primarily intended for this purpose. Similarly, condoms and implants are designed for contraception without a focus on cycle regulation. Condoms are a barrier method that prevents sperm from reaching the egg, and implants release hormones to prevent ovulation but do not offer the same level of cycle management as the pill.