The pain in the stomach of a pregnant woman on the 41st day of pregnancy may be due to the fact that the pregnant woman is newly pregnant and has not been able to adapt to the enlargement of the uterus, so it will lead to a feeling of pressure in the abdomen, which will lead to pain. Occasional lower abdominal pain in early pregnancy is a normal phenomenon. If you have repeated lower abdominal pain, it is recommended that you should go to the hospital in time for examination to identify the cause and then carry out accurate treatment, and you should not leave it out of your mind, as it may be a pre-eclampsia or ectopic pregnancy. And it is recommended that you should also adjust your diet recently and eat less spicy and stimulating food.