Several other conditions can cause symptoms similar to implantation bleeding: - [Ectopic Pregnancy](https://): A condition where the fertilized egg implants outside the uterus, often in the fallopian tubes. - Early Miscarriage: Early pregnancy loss can also cause light bleeding and cramping. - Hormonal Imbalances: Conditions like [polycystic ovary syndrome](https://) (PCOS) can lead to irregular bleeding. - Infections: Certain vaginal or cervical infections can result in spotting.