Good afternoon. At the initial stages, a woman may be bothered by pain in the abdomen, and this is due to the very conception, the restructuring of the body, changes in hormonal levels, an increase in the growth of the uterus, etc., that is, the pain is caused by physiological reasons.
Pregnancy is an important stage in a woman's life, and if she begins to worry about pain like during menstruation, then you need to tell your doctor about this at the reception. Meanwhile, doctors differ in opinion: is this the norm or not. Nevertheless, if abdominal pain, like during menstruation, is accompanied by additional symptoms (bleeding from the genital tract, weakness, dizziness, fainting), you need to call an ambulance, as this may be a symptom of pathology.
More about pain in the stomach during pregnancy is written here: Why does a pregnant woman have a stomach ache.
First of all, with abdominal pain, you need to consult a doctor to identify the cause of the disease. Pain can occur due to the growth of the uterus and the expansion of the pelvic bones.