how many dpo does implantation occur

Implantation typically occurs between 6 to 12 days past ovulation (DPO), with the most common window being around 8 to 10 DPO. During this time, the fertilized egg (blastocyst) attaches to the uterine lining to initiate pregnancy. Some people may experience light spotting or mild cramping as implantation symptoms, but many do not feel any noticeable signs. Human chorionic gonadotropin (hCG), the pregnancy hormone, starts to be produced after implantation, but reliable pregnancy test results usually occur around 12-14 DPO or later.