Alyson Hannigan pregnant boots Satyana sunglasses

Armed with a miniature stroller and baby doll, Alyson Hannigan's two-year-old daughter Satyana looked like a proud big sis-in-training, as the pair stepped out in Santa Monica Thursday afternoon.

The How I Met Your Mother star just announced her pregnancy last month, but she's really starting to show, and her little girl is defintely taking notice! Aly Tweeted this week, "This morning my daughter said to me 'Wow Mommy, your tummy is getting BIG!' I'm really glad I'm pregnant & she didn't say butt."

As for the sex of baby No. 2, Hannigan also Tweeted: "All I want for Xmas is to find out the gender of the baby in my belly! ... I really don't have a preference I just want to stop calling it 'it'!!!"