Gabrielle Reece in Pregnancy Magazine

Gabrielle Reece, 37, poses for the cover and an inside spread in the December issue of Pregnancy magazine, on newsstands Tuesday. The volleyball star and her surfer husband Laird Hamilton, 43, will be adding another child to the family in early January — daughter Reece Viola just turned 4, while Izabella, Laird’s daughter from his first marriage, is 12.

In announcing her second pregnancy, Gabby made mention of her plans to introduce fitness routines for each trimester, which will eventually become three DVDs, available in January.

Click below for the second trimester routine, photos, and a short interview with Gabby.

Gabby and Laird expect their new little one on January 2nd, and are not finding out the sex until the delivery — they feel it’s the ‘single greatest surprise we have in our lives.’ The fitness-focused couple found that keeping up their routines was the key to sanity, especially as their first daughter together liked to exercise too — her lungs, in the middle of the night!

My daughter never slept through the night for two and a half years. I swear to you, my training was the only thing that kept me from absolutely losing my mind — the movement, the sweating, the endorphins, and feeling good about the way I looked.

People would say, ‘How did you get back into shape so quickly after your baby?’ I’d say, ‘No, I stayed in shape during my pregnancy.’

With that in mind, Gabby and personal trainer Mike Monroe are creating the series of three DVDs in real-time as Gabby moves through the three trimesters. The routines, approved by the American College of Obstetricians and Gynecologists, are a safe way for moms-to-be to exercise, although it is suggested you check with your doctor, especially if you are high-risk. Gabby says,

It’s about trying to take away the fear. It’s a mix of, ‘I understand where you’re at, but I’m also going to give you a little push.’ When your baby comes, you better be strong. We make it quick, snappy, and I try to have fun. But the DVDs are about commitment, and a confident message of, ‘Let’s go!’

The second trimester routine (for more images to walk you through the steps, pick up the issue)!

Quadruped body rolls

This keeps your body coordination up and helps alleviate areas that are getting stressed by your growing baby, such as your shoulders and lower back.

(Gabby wears Marika textured seamless camisole in pesto green ($36), Marika rib waist capri pant in pesto green ($39), Nike Free 7.0 athletic shoe in gray with mint green swoosh ($70).)

Start on all fours with your spine neutral. Extend your left leg straight back and slightly elevated so that you feel a burn in your glutes. Holding a 3-pound dumbbell, extend your right arm straight out, at 90 degrees to your leg. Curl your right arm toward the outside of your left elbow, as if you’re giving yourself a hug. Do one set of 12 reps on each side.

Hip Bridges on the Ball with Hip Support

With this move I get a little stretch in my lower spine, which feels really good.

(Gabby wears a Michael Stars cotton cap sleeve basic cross-over vee in white ($29), Juicy Couture maternity cropped pants in concierge blue ($106), and Nike women’s Moire athletic shoes in blue/grey with red swoosh ($100).)

Place a small chair within arm’s reach of a stability ball, then lean on the ball with your back and shoulders supported, your rear off the ground, and your left leg crossed over your right knee. Using your hips and glutes, push yourself up into a bridge position, hold onto the chair for support if you need it. Do one set of 12 reps on each side.

Pick Up The Baby

Your training should help you in real life — we’re always in these compromising, unbalanced positions, picking up groceries and children.

(Gabby wears a Marika cross-over bra in hidden spring teal ($28; eggshell and black only), Be Present bamboo lounge pants in chocolate ($63), and Nike Free MJ athletic shoe in bronzed olive/orchid ($60).)

Standing tall, wrap your hands around the top and bottom of a 5-pound dumbbell, as shown. Then step forward with your right foot to 10 o’clock, keeping your back straight and bending the knees. Continue bending both knees as you twist and lower the dumbell toward the outside of your right foot, as if you’re reaching for a baby. Slowly push back to the 12 o’clock starting position. Alternate sides for a total of 12 reps.

Bicep-Tricep Combo

The theme here is about multi-joint, multi-muscle movements. There’s not hanging around, and there’s no time wasted in constantly getting up and getting down.

(Gabby wears a Marika femme racerback halter in eggshell ($36), Marika Sedona pant in black ($54), and Nike Free MJ athletic shoe in black/white/orchid ($60).)

Holding a 5-pound dumbbell in each hand, bend slightly at the waist and split your stance so that your right foot is in front of your left foot. Your right arm is extended toward the floor while your left arm is bent in a V. Simultaneously do a slow bicep curl with your right arm and a kickback with your left arm. Do one set of 12 reps on each side.

Rear Delt Flys to ‘W’ on Ball

The ball is a great tool for fitness training, pregnancy or not. I’d also bounce on it to relax my daughter when she was really little and fussy.

(Gabby wears Velvet maibyn twist back tank in black ($74), Marika roll-down pant in wine berry ($45), and Nike Free MJ athletic shoe in black/white/orchid ($60).)

Sit upright on the ball, holding a 3-pound dumbbell in each hand. Slowly bend forward with your legs spread far enough that you’re not squishing your belly and touch the dumbbells under your thighs. Then gradually pull your shoulders back and sit up so your arms are creating a ‘W.’ Do one set of 12 reps.

Splinted 3-1 Tempo Sit-up on the Ball

The splint is going to give some support to your upper abs. But by keeping slow and controlled throughout the move, you’re still working.

(Gabby wears an Isabella Oliver ruched tank in caviar black ($65) and Isabella Oliver smooth line trousers in caviar black ($110).)

Fold a gym towel in thirds, lengthwise, and wrap it around your back as you sit on the stability ball, letting your feet anchor you as you slowly lower your back onto the ball. Keep your neck and head engaged and your hands gripping the ends of the towel. Take a deep belly breath and sit up in three small movements — 1, 2, 3. Then lower yourself back down in one slow smooth movement. Check the towel, take another deep belly breath, and move on to the next rep. Do one set of 12 reps.