If the blood pressure is 110/80 mmHg, it is very normal for both early and late pregnancies. Normal blood pressure in pregnant women is a diastolic blood pressure between 90/60mmHg and a systolic blood pressure between 140/90mmHg. That is, as long as the systolic blood pressure is not less than 90mmHg and not more than 140mmHg, and the diastolic blood pressure is not less than 60mmHg and not more than 90mmHg, it is within the normal range. This blood pressure may change during activity or after a change in mood, but as long as the mood is stable and the blood pressure measured after 15 minutes of rest is between 90/60mmHg diastolic and 140/90mmHg systolic, it is normal.