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First Trimester

Just a week after fertilization, baby-making is still in its infancy, so to speak. At 4 weeks pregnant, your body is gearing up, big-time — transforming quickly into a baby-growing haven that will house your little miracle for the next nine months or so.

Chances are you're oblivious to all the hubbub. While some women experience those pesky, PMS-like early pregnancy symptoms, including mood swings, bloating, and cramping, others don't feel a thing.

Whatever you're feeling or not feeling, it may be too early to see a reliable result on your pregnancy test.

The egg implants

Though you may not feel pregnant quite yet, here's what's going on behind the scenes.

The fertilized egg and your uterus are making contact this week in a process called implantation, as the blastocyst you'll one day call your baby begins to attach itself to the uterine lining.

Up to 25% of the time, implantation bleeding will occur as that bundle of cells burrows its way into the uterine wall. Implantation bleeding, which is usually very scant and either light pink, light red, or light brown, occurs earlier than your expected period. 

Don't mistake it for your period and don't worry about the bleeding — it's not a sign that something is wrong. You might feel a little pressure in your abdomen (nothing to worry about!) and your breasts may feel a little tender and become even bigger (but get ready for more growth spurts!

The Happy Mom app is with you every step of the way on your pregnancy journey.

Thank you for reading.

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