Ten days of pregnancy is equivalent to ten days after fertilization, regular menstrual cycle, equivalent to 26-27 days of menstruation when the stomach ache, considering that it is due to the consumption of unclean food or cold stimulation and caused by stomach pain. In the ten days of pregnancy, the time is shorter, the fertilized egg due to the development of small, may be in the process of the movement of the fallopian tube or just bed to the uterine cavity, there will not be a tummy ache uncomfortable feeling, it is true that ectopic pregnancy occurs, but will not be manifested by tummy ache, most of them will occur after the menstrual extension of the tummy ache. If a biochemical pregnancy occurs, there will be vaginal bleeding on the date of menstruation, which will not lead to stomach pain.