Anastasia Nikolskaya Perinatal fitness trainer
Program

The second trimester program

Prepare for birth

The second trimester is the most comfortable period of pregnancy and the best time for regular physical preparation. Nausea recedes, the belly does not get in the way of movement yet, energy is there. This is exactly when the base is laid that the body will live on until birth: a steady posture, core strength, a mobile pelvis, the ability to breathe. By the end of the second trimester many women develop symphysitis, lower-back pain, swelling – and how the body meets these changes depends on what was done between weeks 14 and 27. The program for this phase is built around the growing belly and increased joint mobility (the hormone relaxin is at work – the ligaments become softer, the joints less stable). Some of the first-trimester exercises drop out, and pelvic work, gentle strength load and back exercises are added. All of it – with no straining and no positions on the belly after week 16. If symptoms of symphysitis appear (pubic pain or pain when the legs spread), symmetrical exercises are a must, and asymmetrical ones drop out. With any worrying symptoms, a doctor first, then workouts.

weeks 14–27 3 times a week · 35–45 minutes adapted for symphysitis
What matters most for you now

Prepare for birth

Core principles

What we do
  • Squats with the feet close together, no plié
  • Gentle dumbbell rows to the waist, seated or bent over
  • Resistance-band row to the waist, seated
  • Side plank on the knee
  • Cat-cow on all fours
  • Diaphragmatic breathing + Kegels daily
  • Swimming 2 times a week
  • A pillow held between the knees while lying down
What we avoid
  • Deadlifts and any weighted hip-hinge while standing
  • Plié squats and lunges – any kind
  • Single-leg exercises
  • Leg openings while lying down or seated
  • Exercises on your back after 20 weeks (only briefly; with dizziness, nausea or shortness of breath – switch immediately to the left side or semi-seated)
  • Crunches and the classic plank
  • Jumping, impact load

Exercises

The full set of exercises for this phase. Each one comes with an illustration, sets, and steps. Do them under a trainer’s supervision or after agreeing it with your doctor.

№ 01

Wall squats

3 × 15
  1. Stand with your back to the wall, press the lower back in, feet hip-width apart
  2. Slowly lower down to a 90° angle at the knee, the back sliding along the wall. The knees do not go past the toes
  3. On the exhale, rise up, the glutes leading the movement
Important

The basic skill of squatting with a straight back and on the exhale – this way intra-abdominal pressure does not harm the pelvic floor. This pattern will save your back during pregnancy.

№ 02

Glute bridge with a pillow

3 × 15
  1. On your back, a pillow between the knees
  2. Exhale – lift the pelvis, squeezing the pillow
  3. Inhale – lower smoothly
Important

The pelvis no higher than the shoulders. The glutes lead the movement, not the lower back.

№ 03

Cat-cow

2 × 10
  1. On all fours, palms under the shoulders, knees under the hip joints. The back is neutral
  2. Exhale – round the back, the head gently drops down, the pelvis tucks under
  3. Inhale – make a slight arch in the thoracic spine, the head rises forward and up
Important

Builds the skill of a neutral spine and teaches you to move the back without engaging the lower back. Safe before and during pregnancy.

№ 04

Side plank

3 × 40 sec
  1. Lying on your side, propped on the forearm, the elbow under the shoulder. The bottom leg can be bent slightly for stability
  2. Lift the pelvis in line with the body
  3. Breathe freely, with no holding. Hold the position, then gently lower the pelvis
Important

Teaches stability of the shoulder girdle and the pelvis without axial load on the spine. Safe before and during pregnancy.

№ 05

Resistance-band row to the waist

3 × 15
  1. Seated, the band anchored at chest level, arms extended forward
  2. Exhale – pull the band to the waist (the lower belly), driving the elbows straight back. Squeeze the shoulder blades, lower the shoulders
  3. Inhale – return to the starting position under control, stretching the back muscles
Important

A healthy, strong back now = less lower-back pain during pregnancy. We work on the exhale, with no jerking.

№ 06

Diaphragmatic breathing

daily · 5 min
  1. Lying on your side, legs slightly bent, one hand on the ribs, the other on the belly
  2. Breathe in through the nose – the belly and ribs expand, the chest stays still
  3. A long exhale – the pelvic floor gently draws up (lightly, without effort)
Important

Trains the connection between the diaphragm and the pelvic floor. This skill lowers intra-abdominal pressure – the foundation of safety for any load during pregnancy and after.

№ 07

Knee push-ups

3 × 10–12
  1. Get on all fours, palms under the shoulders, knees on the floor. The back straight from the knees to the crown of the head
  2. Exhale – bend the elbows, lower the chest toward the floor. The elbows track along the body
  3. Inhale – push off the floor and return to the starting position
Important

Strengthens the chest muscles and triceps – it will help you hold your posture as the belly grows and carry your baby in your arms. Keep the back straight, do not sag in the lower back.

№ 08

Thread the needle

2 × 8 each side
  1. On all fours, palms under the shoulders
  2. Slide one arm under the body along the mat, the palm gliding
  3. Inhale – return, repeat with the other arm
Important

The pelvis does not rotate. The movement is only in the thoracic spine.

№ 09

Bird-dog

3 × 12 per side
  1. Get on all fours, palms under the shoulders, knees under the hip joints. The back is neutral
  2. Exhale – extend the opposite arm and leg, the back neither sagging nor rounding
  3. Inhale – return to the starting position, switch sides
Important

Teaches core stability without pressure on the spine. Trains the deep abdominal muscles and the pelvic floor to work together. Safe before and during pregnancy.

№ 10

Kegels

3 × 10 daily
  1. Lying down or seated, breathing freely, the glutes and abs relaxed
  2. Slow: squeeze the pelvic floor muscles for 8–10 seconds, then fully relax
  3. Fast: 10 short 1-second contractions
Important

Being able to engage the pelvic floor quickly helps with coughing and sneezing. But the main thing is not to overtrain it: strength without elasticity is useless. Alternate with the reverse Kegel.

№ 11

Reverse Kegel

daily · 5 min
  1. Lying on your back, knees bent, feet on the floor
  2. Inhale – gently open the pelvic floor down and out
  3. Exhale – a neutral position, with no extra squeezing
Important

Being able to relax the pelvic floor is more critical than being able to squeeze it hard. This lowers the risk of tearing in birth and helps you recover more easily after.

A week of training

A rough plan you can adjust to how you feel.

4 training days
0 rest days
~30 мин average length
FOCUS strength + cardio + mobility
MON
Lower body
40 min
  • Warm-up – breathing + joint mobility · 7 min
  • Wall squats · Glute bridge · Cat-cow
  • Stretching the thighs and lower back
WED
Upper body
35 min
  • Warm-up · 5 min
  • Resistance-band row · Knee push-ups
  • Thread the needle · Mobility
FRI
Functional
40 min
  • Walking · 15 min
  • Side plank · Bird-dog
  • Kegel set · 10 min
DAILY
Breathing and walking
10 min
  • Diaphragmatic breathing · 5 min
  • Kegels + reverse Kegel
  • Walking at a comfortable pace

Frequently asked questions

I am 20 weeks now, and lying on my back feels unwell. Is that normal?

Yes, this is a normal reaction. After 20 weeks the growing uterus presses on the inferior vena cava, making venous return harder.

Symptoms:

  • Dizziness
  • Nausea
  • Shortness of breath

The fix: exercises on the back are swapped for the left side or semi-seated. In the program below, most exercises are done in safe positions.

Can I do strength work in the second trimester?

Yes, if it is adapted. Light weights, working on technique, not on records.

Allowed:

  • Squats
  • Horizontal rows

Not allowed:

  • Deadlifts
  • Weighted overhead presses
  • Ab work and crunches

The principle: anything that does not create straining and does not overload the lower back.

I have pubic pain – is this symphysitis?

It might be.

Symptoms:

  • Pubic pain when walking
  • Pain when the legs spread
  • Pain when changing position in bed

If symphysitis is confirmed, asymmetrical exercises (lunges, single-leg raises) drop out.

What stays is symmetrical:

  • Squats
  • A two-leg glute bridge
  • Breathing work

See a doctorSymphysitis needs a specialist’s supervision.

How do I know the load is set right?

After the session you should feel a pleasant sense of the muscles, but not exhaustion.

Signs that the load is too high:

  • You cannot speak in full sentences during the exercise
  • 2–3 hours after the session you feel pulling sensations in the lower belly or lower back

If there are such signs – the load was excessive. We adjust it.

Save the plan as a PDF or book an intro session

The plan above is a general program for the "Second trimester" phase. Working one-on-one with a trainer takes into account your specific features, your schedule and your goals. An intro session – from 1,600 ₽.

Message or call Anastasia:

Other phases: Before pregnancy · First trimester · Second trimester · Third trimester · Early postpartum · Recovery · After the first year

Information on this site is for educational purposes and does not replace a medical consultation. If you have medical indications, consult your doctor. All training recommendations are applied individually, after assessment.