Heart rate normally increases in the pregnancy time, as the body works to pumps blood to the organs and placenta areas. Many of the pregnant people are also experiences a drop in blood pressure, especially in early-stage pregnancy. There are high chances to get of normal heart rates in pregnancy. By knowing the person’s prepregnancy the heart rate may help to predict their typical pregnancy heart rate. There is no standard explanation of a pregnancy in heart rate range is too high or too low. Instead of that the doctors look at a person’s baseline heart rate and how their heart rate changes over time.