Before pregnancy, women can also experience breast pain and swelling. This happens because, before pregnancy, the female body begins to secrete hormones during ovulation, increasing their levels, which then stimulates the mammary glands, causing breast proliferation and congestion of the mammary glands. Therefore, during pregnancy, this breast pain and swelling phenomenon can worsen. However, experiencing breast pain and swelling does not necessarily indicate pregnancy; it could also be a phenomenon occurring after ovulation and before menstruation. Before pregnancy, due to the influence of the ovulation period, some women may experience swelling of the breasts and proliferation of the mammary glands, or pain caused by lumps in the mammary glands. In such cases, further observation is needed for a few more days, and after having intercourse for half a month, or if menstruation is delayed, a pregnancy test using an early pregnancy test strip is suggested.