13 Weeks Pregnant
Your 13th week begins
13/40
weeks
28 weeks left
Your 13th week begins

13 Weeks Pregnant

Your 13th week begins

12 14
13/40
Weeks

28 weeks left

Your baby is the size of a bean pod.

Your baby this week

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Click the purple button to see more details

This Week

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Your baby’s neck is getting firmer, which enables them to move their head from side to side. Their bladder is working; are they already peeing? Continue Reading

Your summary

  • Development Their urinary bladder is already functioning. They ingest amniotic fluid and eliminate it through urine.
  • How many months is 13 weeks? 13 weeks of pregnancy is 4 months. With week 13 of pregnancy, you are in the first week of the 4th month of your pregnancy.


DAY 1 • OF WEEK 13

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It’s inevitable during pregnancy to worry if our baby is within the expected measurements for the gestational week. Having an informative table to compare with our ultrasound is a big help… Continue Reading

DAY 2 • OF WEEK 13

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The vitamins recommended during pregnancy are supplements that help maintain adequate levels of essential nutrients for fetal development. Since some women cannot eat properly during this phase, the role of vitamins is fundamental… Continue Reading

DAY 3 • OF WEEK 13

IMPORTANT: During pregnancy, the entire body undergoes changes due to hormonal shifts. Among them are spots on the body. There is an increase in estrogen, and the skin also becomes more sensitive. This stimulates what is called melanogenesis, which is responsible for melanin. That’s why dark spots may appear in some areas of the body.

DAY 4 • OF WEEK 13

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In the second trimester, pregnancy begins to show its changes to the world and some women start to show a more noticeable belly. At this stage, parents are mostly eager to find out the baby’s sex and to feel the first movements in the belly… Continue Reading

DAY 5 • OF WEEK 13

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Sexual activity during pregnancy is always a taboo. Many couples go through this phase with fear, while others enjoy it fully. Certain positions and specific care should be taken, but a couple’s sex life can remain active, unless it is prohibited by medical advice… Continue Reading

DAY 6 • OF WEEK 13

Pregnancy is an amazing stage in a woman’s life. But it is also a time of many discomforts due to the various changes in the body. At each stage, women feel different pains and discomforts, related to the specific changes of each phase.

DAY 7 • OF WEEK 13

IMPORTANT: Waxing during pregnancy is a much-discussed topic, surrounded by many myths. Some say it is forbidden, but actually, it just requires extra caution. After the 12th week of pregnancy, if done in a hygienic place and with natural products, there is no problem.

key information box:

  1. At 13 weeks pregnant, your baby may already be 7.4 cm from head to bottom. If the baby is a girl, she already has some eggs being produced.
  2. This week, the baby’s neck will be more developed, which will allow them to move their head from side to side, holding the weight of the head.
  3. Their urinary bladder is already functioning normally. As they ingest amniotic fluid every 30 minutes, it is normal for this to be eliminated as urine.
  4. Undesirable symptoms such as nausea and morning sickness begin to fade away. In some cases they may persist until the end of the pregnancy.
  5. Intake of foods rich in calcium should be increased during this period. Calcium will be needed for the development of your baby’s bones.

Your baby this week

#

Click the purple button to see more details

More information about 13 Weeks Pregnant

At 13 weeks pregnant, your baby may be 7.4 cm from head to bottom. If she is a girl, some eggs are already being produced to be stored for her entire life. When the time comes, they will be released each menstrual cycle.

Your baby’s fetal development means that their genital organ is now more prominent1. Although it is not possible to distinguish it clearly, you can get an idea on the ultrasound. And who knows, it can make for a fun family guessing game to try to figure out the baby’s sex!

Baby’s Development

This week, your baby’s neck will be better developed. This will allow them to move their head from side to side and already hold up their own head. At this stage, the head is still a little larger than the rest of the body. At 13 weeks pregnant, the fingers begin to take the correct shape and the thumbs are much larger than the other fingers.

The hands and feet are already fully formed, and now the muscles and joints throughout the body begin to stiffen. The central nervous system is now complete, but it will only fully mature and develop after birth, up to the baby’s first year2.

At 13 weeks, your baby’s urinary bladder is already functioning normally. Since they swallow amniotic fluid every 30 minutes, it’s normal for it to be eliminated as urine. And yes, do not be surprised, they drink the same liquid they pee out! However, this liquid is filtered from time to time by the placenta.

How Mom Is Feeling

You are now officially entering the 2nd trimester! At 13 weeks pregnant, in most cases, the highest risk of miscarriage has passed. However, late miscarriages can still happen up to the 20th week. In a few weeks, you may start to lose your favorite pants and maybe even some tops due to your growing belly. For some women, pregnancy is more obvious. Others may just look like they’ve gained weight. Either way, showing off your bump will make you feel like the most beautiful woman in the world!

Undesirable symptoms like nausea and morning sickness begin to fade away at 13 weeks. In some cases, these symptoms may persist until the end of the pregnancy, but few women experience this. The veins in the breasts and belly become more visible at this stage, so don’t be alarmed!

Nutrition

Intake of foods rich in calcium should be increased during this 13-week period3. This calcium will be needed for the baby’s bone development, which now begins to take place. Include foods with milk in your diet, such as cheese and yogurt, or even a nice broccoli salad. Besides being rich in calcium, these foods are delicious.

External Factors

At 13 weeks of pregnancy, your belly will look rounder than in previous weeks and your desire to show the world that you are carrying life will only grow stronger. The feeling of having a baby grow inside you is indescribable, and the desire to hold them in your arms gets stronger every day.

Take advantage of quiet days to take care of yourself, do some shopping, and prepare the layette. Doing everything calmly and with care means everything will be ready just how you want it when your due date arrives. Are you feeling special and unique? That’s really the feeling of the joy of carrying a child—enjoy every moment!

Photo: cpdt, Jug Jones

12 14
13/40
Weeks

28 weeks left

13/40
weeks
28 weeks left

References:

For us, credibility and transparency are essential. That’s why our articles are written and reviewed by specialists in the field. This article was written and reviewed by:
Gynecologist and Obstetrician
CRM 175089 / RQE 89187
Medical reviewer graduated from the Faculty of Medical Sciences of Santos, specialist in gynecology, obstetrics, and human reproduction from UNIFESP.
Maternity Expert
After trying to conceive for 7 years and now a mother of 3, Patricia is the author and creator of the Trocando Fraldas portal and the Famivita brand.

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