Reporter: She hit it big as sixx, the quirky best friend on "blossom." Pregnancy is a total natural state. There's nothing natural about firing a person out of your body. Reporter: Now 35 years old,... See More
Reporter: She hit it big as sixx, the quirky best friend on "blossom." Pregnancy is a total natural state. There's nothing natural about firing a person out of your body. Reporter: Now 35 years old, actress jenna von oy blouse many soed into a real-life wife and mother of 10-month-old baby girl grey. A brand-new day. Reporter: But von oy who also starred in "the paers" is the first to admit that motherho may be her toughest role yet. Do you ever go, this is just overwhelming? Yes, yes. When you have your child throwing up on your shoulder and your dog is puking on the couch in the other room and you're not really sure what to do first. Those are really the frustrating days. Reporter: Those frustrations are ones she echoes on her own blog and one for "people" magazine. Her most recent entry, a refreshingly real account of the challenges that come with being a first time mom. It is a constant adventure. It is crazy making, wonderful, terrifying and phenomenal all at the same time. Reporter: What's terrifying? Waking up in the morning. As simple as that. Reporter: As von oy maneuvers motherhood one anxiety-filled day at a time she hopes her blog shows other mothers they're not alone. Something dr. Jennifer ashton says can make all the difference. I think for a lot of mothers they have an ideal about what motherhood will be like and pretty quickly reality sets in. Support is key. Reporter: As for von oy she acknowledges she may never achieve parenting perfection but she says she's having a heck of a time trying. Is it more difficult than i imagined? Sure. But the surprises really are the best parts of parenthood. Reporter: For "good morning america," cecilia vega, abc news, new york.
This transcript has been automatically generated and may not be 100% accurate.