You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Very often the first indication a woman has that she is pregnant is a missed menstrual period. In which week of embryonic development will a woman experience her first missed menstrual period? and explain in detail?
Feilization of ovum takes place on day-15 of menstrual cycle. woman notices missing of next menstrual period from day1- day5 if implantation takes place. That day corresponds to sta of 3rd week of embryonic development ( day15-day28-day1-5 of next cycle= >14 days)