Caffeine in tea, coffee, cola, etc - have no more than 200 mg per day.(Things you should stop or cut down on)

http://www.patient.co.uk/health/planning-to-become-pregnant

Caffeine in tea, coffee, cola, etc - have no more than 200 mg per day. For example, this is in about two mugs of instant coffee, or one mug of brewed coffee and a 50 g bar of plain chocolate, or two and a half mugs of tea.