We’re pretty sure the liar who said, “Don’t worry! Breast-feeding melts off the pounds” is the same person who said, “Don’t worry! Your maternal instinct will kick right in.”

Our suggestion: While nursing off that extra padding, pop in a copy of Baby’s Home … What Now? The new DVD takes all the advice, tips, and facts you need for the first three months and synthesizes it into manageable chapters.

Calling on experienced parents and a panel of experts (an ob-gyn, pediatric nurse, sex therapist, and postpartum consultant), it bravely ventures into territory your friends with kids forgot to share (sleepless nights, messy postpartum recovery, sex after childbirth).

And though the DVD won’t give you all the answers, it does arm you with enough knowledge to feel confident in your new role as mom. Which is the weight off you really need.

Available online at babyshomedvd.com, $25.

GLOW
Winter Lights Festival
What: Load up the car, and then marvel at colorful, illuminated vignettes.
Why: Spring for a pair of holographic specs ($2) to add some extra twinkle.
When: Thru Jan. 1. Tues.-Thurs. & Sun., 6-9 p.m.; Fri. & Sat., 6-10 p.m. (Closed Dec. 25.)
Where: Seneca Creek State Park, 11950 Clopper Rd., Gaithersburg. Info at 301-258-6350. Carload, $12-$15.

EXPLORE
Celebrate Biodiversity
What: Learn about the planet through presentations and hands-on activities.
Why: Fuzzy four-legged friends drop by.
When: Sat., 11 a.m.-2 p.m.
Where: Maryland Science Center, 601 Light St., Baltimore (410-685-2370). Adults, $15; children 3-12, $12; under 3, free.

SEE
Elmo’s Healthy Heroes
What: The Sesame Street star schools tots on exercise and nutrition in the energetic show.
Why: He’s down with Mrs. Obama.
When: Thurs., 7 p.m.; Fri., 10:30 a.m. & 7 p.m.; Sat., 10:30 a.m. & 2 p.m.; Sun., 1 & 4:30 p.m.
Where: Patriot Center, George Mason University, 4500 Patriot Cir., Fairfax (703-993-3000). Tickets at 703-573-7328 or online at ticketmaster.com. Adults and children, $15-$75; under 1, free.

Photo: Courtesy of Parents and Experts, LLC