have the coffee!! It will do your baby no harm...
Enjoy!
A small amount of caffeine is fine. However, if you have a lot of caffeine it increases your risk of having a baby with low birth weight, and increases your risk of having a miscarriage. The increased risk is small. But, it is best to play safe. The Food Standards Agency recommends that you do not have more than 300 mg caffeine in any one day if you are pregnant, or if you are trying to become pregnant.
Calculating your daily caffeine intake
As a rough guide:
One mug of instant coffee has about 100 mg caffeine.
One cup of instant coffee has about 75 mg caffeine.
One cup of brewed coffee has about 100 mg caffeine.
One cup of tea has about 50 mg caffeine.
One 50g chocolate bar has about 50 mg caffeine.
One can of cola has up to 40 mg caffeine.
One can of 'energy' drink may contain up to 80 mg caffeine.
Check the label on medicines for quantities of caffeine.
So, you do not have to stop your favourite drinks, but you may need to limit their amount. For example, you will reach the 300 mg limit for one day if you
Eat two bars of chocolate, drink two cups of tea, and have a cup of brewed coffee, OR
Drink three cups of tea, and three cups of instant coffee, OR
Drink a can of energy drink, two cans of cola, one cup of tea, and eat a 50g bar of chocolate.
Etc.