How can I tell if implantation has been successful?
Implantation refers to the process whereby the fertilized egg—formed after sperm and egg unite—attaches itself to the uterine lining (endometrium). This typically occurs 9–11 days after ovulation in women. To determine whether implantation has successfully occurred, a pregnancy test strip can be used approximately one week after intercourse. A positive human chorionic gonadotropin (hCG) test result indicates successful conception and that the fertilized egg has implanted and begun developing within the uterus.

Additionally, a slight drop in basal body temperature often occurs at the time of successful implantation—commonly referred to as “implantation dip.” This is one of the most noticeable early signs of successful implantation. After ovulation, a woman’s basal body temperature remains elevated for about 12–16 days. If implantation occurs, her temperature may briefly decline—typically on the day following ovulation—and then rise again the next day. This transient temperature drop signifies implantation and confirms early pregnancy. Women who have missed their menstrual period for two weeks or longer should visit a healthcare facility for confirmation of pregnancy.