4. Not everything you hear about being pregnant is true. 

The reality star noted that throughout her pregnancy, she would get weird looks for ordering coffee when medically, pregnant women are permitted to drink up to 200 mg of caffeine a day. "

If you decide to take a ride on the baby train, be sure and talk to your doctor for peace of mind before making any personal decisions. In the meantime, take comfort in the fact that your lifestyle may not have to change that much if/when you get pregnant," she wrote. "Yes, you can still work, exercise, have sex, color your hair, drink coffee and even wear heels if you want to."

5. Sometimes a healthy diet will upset your stomach. 

Holly kept a healthy diet during her first pregnancy, but couldn't stomach some of the items she ate the first time around while carrying her son. In her words, "Green juice makes me want to vomit."

"Despite having the same motivation and the same knowledge of nutrition as I did during my first pregnancy, I just can't stomach the same diet, for whatever reason," she explained. "Is it hormones? The baby's gender? I may never know, I'm just taking each day to try and eat healthier."

6. Make a capsule maternity wardrobe.

With so many other things going on during a pregnancy, Holly advises building a maternity wardrobe for seamless everyday dressing.

"[It's comprised] of 35 pieces (example: seven pair of shoes, seven tops, seven bottoms, seven dresses and seven pieces of outerwear/coats). Ideally, most of the items should all be able to mix and match and you should love every piece, making getting dressed on an ordinary day the easiest, most thoughtless process possible, because, let's face it, you have more important things to think about," she wrote.