The pain of implantation that occurs when a fertilized egg is laid tends to be a mild pain more down and slightly deeper in the small of the abdomen. The pain of implantation caused by a fertilized egg tends to be milder and can be tolerated by most people. When a fertilized egg is implanted, it is often at the base of the uterus or in the center of the uterus. The uterus is in the center of the pelvis so the location of the implantation pain may be deeper. The pain usually occurs about 10-12 days after sexual intercourse and is mild and lasts for 2-3 days before resolving on its own. Not everyone will experience painful implantation when a fertilized egg is laid, and it is normal to have no painful implantation. When fertilization pain occurs, it is recommended to pay proper attention to avoid overexertion, avoid staying up late, and pay attention to the intake of nutrients to provide good conditions for fertilization of the egg.