During pregnancy, a woman's body undergoes numerous endocrine changes. Identify the group of hormones that are produced in women only during pregnancy, along with the specific structure that secretes the hormone relaxin in the later phase of pregnancy.

Step-by-step solution

According to NCERT, human chorionic gonadotropin (hCG), human placental lactogen (hPL), and relaxin are the hormones produced in women only during pregnancy. Hormones like estrogen and progesterone are not exclusive to pregnancy as they are also secreted during the normal menstrual cycle. Furthermore, in the later phase of pregnancy, the hormone relaxin is secreted by the ovary. Therefore, the correct group of exclusively pregnancy-related hormones is hCG, hPL, and relaxin, and the source of relaxin in late pregnan