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Today, a junior colleague at work told me she's pregnant. I'd heard from her a while ago that she was pregnant, but she'd only told a select few at work because she didn't know what might happen. She didn't like being treated with such caution. That being said, our workplace involves a lot of experimentation, so I've been thinking lately about how to balance a safe and secure pregnancy with work... what kinds of experiments are okay to ask her to do, and what should be avoided.

A senior colleague whose partner recently gave birth told me that it's a good idea to review the employee benefits available during life events like pregnancy and childbirth, even if you're not planning on experiencing them yourself. That's true, it's important because colleagues, seniors, or juniors like Macchan might experience these things, right?

That's right, I've never looked into it!

So, today I'd like to talk to you two about pregnancy and childbirth.

The fact that "the mechanism of pregnancy works perfectly" is precious, and in a sense, rare.
An egg, developed in a woman's ovary, is released once a month and transported to the fallopian tube. Healthy sperm produced in a man's testes meet the egg at the right time, fertilization occurs, and the fertilized egg implants in the uterine lining, resulting in pregnancy. Pregnancy cannot occur unless all these organs work together perfectly. It is truly an amazing system.

When does a pregnancy test show a "positive" result?

Pregnancy tests detect a hormone called human chorionic gonadotropin (hCG), which is secreted by the part of the uterus that later becomes the placenta. In women with regular menstrual cycles, a positive result is often obtained around the time of their expected period. However, there is also a possibility of ectopic pregnancy (a condition where the fertilized egg implants and develops outside the uterine cavity, requiring surgery, etc.), so if a commercially available pregnancy test is positive, it is best to see an obstetrician/gynecologist.

So, a pregnancy test alone doesn't guarantee a definitive diagnosis.

It's true that at this stage, an ultrasound might not show any clear signs of pregnancy, but it's reassuring to keep an eye on it. Eventually, the space where the baby will reside (the gestational sac), the baby itself, and the heartbeat will become visible, and the due date will be determined. This is also around the time you'll go to the local government office to register your pregnancy and receive your maternal and child health handbook.

I wonder if I can feel a little more at ease once the heartbeat becomes clearly visible.

That's true. In fact, 15-20% of pregnant women experience miscarriages. And most of these occur early in the pregnancy, up to 11 weeks. These are caused by abnormalities in the fertilized egg itself and can happen to any couple. Nevertheless, it can be a tremendous shock and source of anxiety for the woman and her family, so emotional support is important, and consideration and understanding from those around her will be necessary.

During the approximately 10 months that the fetus grows, the pregnant woman's body undergoes dramatic changes. The early stages of pregnancy, when the changes are not yet visible externally, are also a crucial period.

Even if the baby's belly isn't very noticeable, it's clear that a life is definitely growing inside.

Many pregnant women experience morning sickness or dizziness in the early stages of pregnancy. This can make standing during your commute difficult. In such cases, don't try to tough it out; prioritize your own and your baby's well-being and sit down. If there's a rest area available, use that as well. Life is precious.

Besides morning sickness and dizziness, let's share some other things that both men and women should know about a pregnant woman's body. Some people may not be able to talk about it, so knowing about it even if you're not directly involved will help you understand. It's important knowledge.

One word that often comes up in relation to pregnancy is "morning sickness," but what exactly is morning sickness?

Morning sickness is characterized by nausea and loss of appetite starting around the time a woman realizes she's pregnant. Usually, the symptoms ease by around 12-15 weeks of pregnancy. However, if morning sickness becomes severe enough to require intravenous fluids or hospitalization, it's called hyperemesis gravidarum. While the main cause is the rapid increase in female hormones in early pregnancy, environmental factors and mental state can also exacerbate the symptoms.

I see. Since everyone's environment and mood are different, morning sickness symptoms also vary from person to person.

When I hear about a pregnancy, I sometimes hear things like, "I've entered the stable period," but what exactly is "stable" about this "stable period"?

Generally, the period from 16 weeks of pregnancy onwards is called the "stable period." It's true that the time when early miscarriage is over and morning sickness subsides is around this time. However, "stable period" is not a medical term. Some pregnant women expand their activities, such as traveling long distances, when they reach the "stable period." But premature birth and various pregnancy complications can occur after this, and as a professional, I don't want the term "stable period" to be used lightly. Attention must be paid to the health of both the mother and the fetus at every stage of pregnancy.

You might not hear about it often, but I want everyone to know about premature birth.
A miscarriage occurs when a pregnancy ends before 22 weeks, and a premature birth occurs when delivery occurs before 37 weeks. Threatened premature labor is when the uterus contracts and the cervix opens, indicating an imminent risk of premature birth. While infection and rupture of membranes are often involved, individual constitution can also play a role. Although neonatal medicine has advanced, it's still desirable to avoid premature birth whenever possible. Threatened premature labor requires rest and hospitalization, so it's important to pay attention to symptoms and consult with your doctor.

Are there any signs that indicate a baby might be going into premature labor?

In the later stages of pregnancy, it's normal to feel abdominal (uterine) contractions that aren't painful. However, frequent or painful contractions are abnormal and should be monitored carefully. Vaginal bleeding is also something to be wary of.

My friend was talking about how her doctor told her about weight gain and also about gestational hypertension when she got pregnant. What exactly does that mean?

Pregnancy-induced hypertension is a condition where, in addition to elevated blood pressure during pregnancy, various organ damages occur. While it usually improves after delivery, it's a serious condition that can have adverse effects on both the mother and the fetus if it becomes severe. Women with pre-existing high blood pressure or kidney disease should be especially careful, and obesity and advanced age also increase the risk.

During pregnancy, circulating plasma volume increases, but the increase in red blood cells can't keep up, so the blood becomes thinner and you usually become anemic. At the same time, your iron requirements increase, so you need to make sure you get enough through a balanced diet.

I don't know how to achieve a good balance.

The Ministry of Health, Labour and Welfare provides information on its website. For example, this ( Ministry of Health, Labour and Welfare's Book on Healthy Body Building and Diet ) is a good resource.

After childbirth, a woman's body begins to change in an attempt to return to its pre-pregnancy state. For example, the placenta produces a large amount of female hormones during pregnancy, but after childbirth and the expulsion of the placenta, the amount of female hormones in the body decreases rapidly. The heart returns to normal within two weeks postpartum, and the uterus returns to normal within six to eight weeks. The period during which the mother's body returns to its pre-pregnancy state is called the "puerperium."

I'd never really thought about how long it takes to recover after giving birth. I could imagine the uterus returning to its original size after the baby is gone, but I couldn't picture the heart changing that much. Does it really change that much?

It does change. During pregnancy, your heart rate increases because you need blood for both yourself and the baby. This means it will return to the amount needed for just one person.

For those of us who don't experience any physical changes, there are probably other things we can't imagine.