03/28/2008 AT 03:00 PM EDT
Jamie Lynn Spears
took another step toward marriage
Thursday – registering for gifts at Babies R Us.
Spears, who turns 17 on April 4, drove 80 miles to Baton Rouge from her home at the Serenity mansion in Kentwood, La., was reportedly accompanied by her cousin, and, "somebody called ahead to say they were coming in," a source told PEOPLE.
Reportedly flashing an engagement ring on her left hand, Spears also was sporting a shirt that read "The Rumors Are True" as she and her cousin both registered for gifts at the store, according to sources.
The Zoey 101
star's choices ranged from a $1.49 teething ring to a $300 car seat. Other requests include an ultrasound frame, a Cookie Monster bath towel and a Baby Neptune Ocean Gym.
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