The most common cause for spotting and cramping after ovulation is implantation bleeding, or the process of a fertilized egg attaching itself to the wall of the uterus, according to WebMD. It can also signify pregnancy problems, such as an ectopic pregnancy or miscarriage, or can simply be the body's natural response to ovulation, as stated by the American Pregnancy Association.
If the spotting and cramping are due to pregnancy, both the symptoms are very light, and the bleeding is typically brown in color, according to WebMD. This can occur anywhere from six to 12 days after an egg is fertilized. Additionally, this early stage of pregnancy is often accompanied by a thick, white milky discharge that is used in the body to help thicken the vaginal walls.
For more excessive cramping, nausea and even light, red bleeding, it is important to contact a doctor for evaluation as this can indicate pregnancy problems, according to HealthDay. If there is no chance of pregnancy, spotting after ovulation can be a side effect of ovulation that is often accompanied by cramping, breast tenderness, bloating, an increased sex drive and a heightened sense of taste, smell or vision, according to the American Pregnancy Association.