Some chickens lay an egg almost every day, others every 1.5 to 2 days. Younger hens (called pullets if less than one year old) will lay smaller eggs at larger intervals until they reach maturity.
The caffeine effect. There are several reasons why women should limit their caffeine intake to less than 200 mg per day during pregnancy. Caffeine is a stimulant that influences the sympathetic nervous system to give you a buzz, sending messages to and from your brain more rapidly.
But perhaps worst of all, you should limit your coffee intake. The UK Food Standards Agency-recommended daily dose of caffeine in pregnancy is 200mg, which equates to two cups of instant coffee, two mugs of tea (75mg each), six cans of Coca-Cola (32mg each) or four 50g bars of chocolate.