Any kind of caffeine is not healthy for the baby . Doctors told me to limit my caffeine in take one to two cups a day. It can make the babies heart rate go up.
I drink at lest a cup in the morning I'm 7 months along, and coffee helps my asthma and allergies.
It's recommend to have less than 12 oz a day
I think you need to have a talk with your sister. Coffee is fine in moderation. I have been drinking it my entire pregnancy. It is best to listen to your Dr.
I have been a coffee drinker since I can remember, and I asked my doctor about it and she said is OK as long as I don't have too much. My sister in law drank coffee through her pregnancy and she and the baby were just fine!.. I drink a cup a day, sometimes a little bit more if I'm too tempted!
Its fine as long as you don't go crazy with it!(: