
What fatigue is: The apparent disappearance of your get-up-and-go, which seems to have temporarily gotten up and gone
What causes it: Pregnancy is sort of like climbing a mountain or running a marathon (without having trained), while carrying a backpack that weighs a little more every day — in other words, it's hard work! During the first trimester, a huge amount of energy goes into building a life-support system for your baby (namely the placenta). In the last trimester, fatigue returns as your growing fetus puts more demands on your body — and as sleep becomes more elusive. Also to blame, all that mood upheaval — riding the emotional roller coaster of pregnancy can be exhausting. It's no wonder you're pooped
What you need to know about it: By the end of the first trimester, your body will have completed the Herculean task of manufacturing the placenta and grown a bit more used to the hormonal and emotional changes that have occurred.
So... no wonder I am exhausted and short of breath!!!