You've reached 13 weeks of pregnancy , that pivotal stage where the initial fog finally lifts. After the sometimes difficult weeks of the first trimester—the nausea, the overwhelming fatigue, the rollercoaster of emotions—your body is gradually offering you some respite. And above all, a new feeling is taking hold: "That's it, I really feel pregnant."
This is a sweet time, filled with quiet firsts, small changes that are uniquely yours, and projects that are slowly beginning to take shape in your mind. So, let's get comfortable, breathe, and explore together what's happening in this 13th week .
Baby at 13 weeks: a little being growing at an incredible speed
At 13 weeks of pregnancy , your baby is no longer the tiny embryo it was at the very beginning. It measures approximately 12 cm , and even if that still seems small, its little inner world is organizing itself at an impressive rate.
His face is becoming more expressive, with more defined features. He's already swallowing amniotic fluid : yes, it sounds crazy, but it's a key stage in the development of his digestive system. His little arms and legs are moving around in all directions, even if you can't clearly feel these movements yet. And if you're wondering if the baby is moving at this stage, the answer is yes—but these sensations become most noticeable in the fourth month of pregnancy , when they sometimes feel like tiny bubbles bursting under the skin.
Everything is falling into place so that, in the coming weeks, your connection with him will become increasingly tangible.
Your body: a belly that is gently rounding out
As for your belly, this 13th week of pregnancy often brings a subtle but very real change. You may not yet have a "real" round belly, but something is starting to take shape. In the morning, in the mirror, you might notice that little bulge that only you see, but that makes you smile.
Weight gain begins gradually, driven by pregnancy hormones that continue to work in the background. Naturally, your body is changing: it's adapting, creating space, preparing for what's to come. And even if everyone tells you that the second trimester is the most pleasant—which is often true—you're already starting to feel it.
Also, a small but useful detail for calculations: 13 weeks of pregnancy corresponds to approximately 15 weeks of amenorrhea .
It's a real transition, between the end of the first quarter and the beginning of a gentler period.
What are the symptoms at 13 weeks of pregnancy?
The news that delights many: for many women, the end of the first trimester means a general feeling of well-being. Nausea subsides, energy levels slowly return, and cravings become more reasonable again—a real relief.
But that doesn't mean that nothing is happening anymore.
You can feel:
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Slight twinges in the lower abdomen (normal: it's growing!)
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A sometimes capricious transit
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A still sensitive chest
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Skin that changes mood from one day to the next
This is also the perfect time to start, or strengthen, your skincare routine. The skin on your belly, which will soon be under a lot of stress, needs hydration and suppleness, especially to minimize the appearance of stretch marks. It's the ideal opportunity to incorporate a pregnancy stretch mark oil in the morning or a pregnancy stretch mark cream in the evening, depending on your preference. The secret: consistency and gentleness, a true pampering moment just for you.
Is it possible to know the sex of the baby at 13 weeks of pregnancy?
This is THE question that many people ask themselves at the 13th week of pregnancy .
At this stage, some professionals may offer an estimate, but nothing truly reliable. The reproductive organs are not yet sufficiently developed to provide a definitive answer. The 4-month ultrasound is generally when you can find out… if you want to find out, of course.
Just a little more patience, you're almost there.
How to live well at 13 weeks of pregnancy?
You are entering a period where your energy levels rise, your appetite stabilizes, and your body often sends you gentler signals. This is the perfect opportunity to establish simple routines that will support you throughout your pregnancy.
Take the time to eat a varied diet, without forcing yourself, but listening to your body's needs. Stay hydrated: this affects both your energy levels and the elasticity of your skin. As for activity, walking, prenatal yoga, or gentle stretching are excellent ways to keep your body mobile and relaxed.
And above all, treat yourself to some "me time." A break, a massage, a treatment, a moment of pampering… It could also be the perfect opportunity to discover a pregnancy gift set , ideal for accompanying you throughout this beautiful adventure.
Emotions: sensitivity, gentleness, and initial projections
At 13 weeks , your emotions are also changing.
Some expectant mothers experience a wave of calm, while others still feel extremely sensitive. This is perfectly normal. Your body is changing, your sense of security is shifting, and what you are experiencing is profoundly unique.
This is often the moment when we really start to imagine ourselves there: in the name, in the future room, in the little things we're already picturing. It's only the beginning, but these thoughts are like little seeds of happiness.
In summary
At 13 weeks pregnant , you're entering a gentler, more reassuring phase. Baby is developing at an impressive rate, your belly is starting to show, your symptoms are subsiding, and your energy is gradually returning. You're in that stage where everything becomes more concrete, more serene… more real.
Take care of yourself, listen to your body, and savor every little improvement. You're doing a wonderful job. 💛
