Photo: Amy Sussman/Getty Images

Katharine McPhee

The new mom shares 5-month-old son Rennie David with husband David Foster, and speaking with PEOPLE on Friday, she says their child continues to be “advanced” in how quickly he’s hitting developmental milestones.

TheCountry Comfortstar says “nothing has surprised me” about motherhood, and she wants future moms to know that it’s a joyful experience to welcome a child.

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“Sometimes you hear more negative stories about motherhood and how tired you’re going to be and it’s so hard. I’d like to be an example of how great it is and how positive it is,” she continues. “Because you do hear those things, but I think they sometimes get clouded with how hard it can be.”

“And it is hard,” she says, “but my attitude towards being a mom is just so grateful. It comes from such a grateful standpoint that I think when you come from a place of gratitude, the things that are hard you just deal with them and you move on. The joy outweighs the struggle.”

Becoming a parent did alter her perspective on the environment and building a sustainable, healthy future for future generations. That’s why she felt it was important to be involved with the initiative to clean local beaches.

Amy Sussman/Getty Images

katharine mcphee

Now as a mom, she says she thinks of questions like, “‘What’s it going to be like in 10 years? Are we going to get our act together? Are we going to clean it up? Is it going to turn into something quite different than what I remember? What is he going to grow up in?’ "

“I’m raising [Rennie] in Los Angeles and I’ve really noticed L.A. take a huge nosedive in terms of its cleanliness. We’re having a huge problem here and it’s such a daunting subject. I don’t even know where to begin,” she tells PEOPLE.

“And it’s all connected. The trash makes its way here. It makes its way to the ocean and to the beach. It’s very upsetting. I don’t know what the answer is, but we have to have everyone on a daily basis doing what they can be responsible for.”

source: people.com