After how many days of ovulation, embryo implantation occurs?: (A) 3-5 days, (B) 6-9 days, (C) 10-12 days, (D) 13-15 days
Answer is B. After the feilization process, embryo is formed in the ampulla and it reaches the uterine cavity on 3rd - 4th day and the implantation occur between 6th to 9th day of ovulation