Caffeine is found in most popular beverages around the world, such as tea or coffee. Since caffeine is a stimulant it is capable of increasing blood pressure and heart rates, both of which are unhealthy for pregnant women. Caffeine is also a diuretic, which means it increases the frequency of urination and leads to dehydration. Moreover, it can get absorbed by the placenta and get passed on via the umbilical cord to the developing baby. It can also induce erratic sleep patterns which can be harmful for the baby.
While your body is able to counter the effects of caffeine, your baby may not be able to do so as it is still in its nascent stage of development.
Caffeine is also believed to trigger miscarriages and preterm delivery. So, it is best to avoid caffeine during this delicate stage of your life. But, in case you feel you just can’t do without your daily caffeine, at least try and limit your intake to less than 200 mg per day. This equals about 1–2 cups (240–580 mL) of coffee or 2–4 cups (540–960 mL) of caffeinated tea.