Less than a week after announcing she’s pregnant with her first child with husband Derek Jeter, Hannah Jeter looked stunning on the red carpet for Sports Illustrated’s Swimsuit issue launch on Thursday night. She walked the red carpet sporting a tiny baby bump in her sequin Fabiana Milazzo dress and Schutz heels. But it was the 26-year-old’s sun-kissed balayage that’s giving us major hair inspo.

Balayage highlights are perfect for expecting moms,” Hannah’s colorist and Matrix SoColor celebrity stylist George Papanikolas said. “They don’t touch the scalp so you don’t have to worry about chemicals going into the blood stream. By focusing on the face frame, natural part and ends, you can create a beautiful glow.”

To add the just-right shades for Hannah’s shoot for SI Swim, George applied his signature two-step technique. He hand-painted highlights on the mid-shafts to ends that framed her face and through the crown. Then he back-combed large horizontal slices into V shapes. He used Matrix Light Master mixed with Matrix Bond Ultim8 Bond Protecting System to keep the hair in ideal condition.

Inspired by Hannah’s striking hair color? Make sure you find a pro that really knows her stuff. There is little evidence to suggest that hair dye is unsafe for pregnant women, but Nicole Tresch from the Rita Hazan Salon in New York City warns that even with balayage, you still have to be careful. “Balayage can be tricky, since many colorists touch the scalp with the bleach, which is a no-no,” she tells Brit + Co. “A safer bet is to use foils with highlight. Also consider switching to a vegetable dye for gray coverage, which has little to no ammonia or peroxide.”

And, of course, check with your doctor before making an appointment. “If someone has gone through a lot to finally get pregnant, it’s important to be safe,” Tresch says. “I always recommend my clients ask their doctor first. They may say it’s fine, wait until after the first trimester, or not at all. Doctor’s orders!”

What did you think of Hannah’s look? Will you be trying this for yourself? Tweet us @BritandCo!

(Photo via Jim Spellman, Michael Stewart/Getty)