15 Early Signs You Might Be Pregnant
Fatigue
Pregnancy causes your levels of the hormone progesterone to drastically rise, which can lead to excessive sleepiness. Fatigue tends to be worse during the first trimester (some women even experience a burst of energy at the end of pregnancy when it's time to really start “nesting”). If you're battling exhaustion, take naps when you can and remember to take it easy on yourself -- and the caffeine.
