1. Delayed Menstruation
Menstruation is the most accurate and vivid reflection of reproductive health and pregnancy in women. Menstruation occurs in cycles every 22 - 30 days, depending on each individual's physique. If you've recently had sexual intercourse but haven't seen your period yet, then go ahead and buy a pregnancy test kit to check. It's highly possible that delayed menstruation is the sign indicating the joyful news.
Delayed menstruation is perhaps the clearest and most common sign to help expectant mothers detect pregnancy early. When fertilization is complete, the body will produce the hCG hormone, and the next menstrual period will not occur. However, some women have irregular periods, so they may easily mistake pregnancy for a missed period. Therefore, to ensure that you are indeed pregnant, wait for some other signs as well!


2. Changes in Breast
Changes in size and condition of the breasts are among the most evident and noticeable signs of pregnancy. If you feel your breasts experiencing symptoms like pain, tightness, and slight hardness, with darker nipples and visible veins, you might be pregnant. However, these signs could also indicate premenstrual symptoms, so mothers need to be particularly attentive.
Your breasts will undergo changes throughout the pregnancy process to prepare for breastfeeding. These changes are caused by an increase in hormones. From around the 16th week of pregnancy, breasts may begin producing milk. Hence, you may experience some colostrum leaking from your nipples starting from this time. If this discomforts you, you can use a breast pad (a disposable or washable fabric piece) placed inside your bra. Or you may wear a thin nursing bra when sleeping if it helps you feel more comfortable.


3. Thickened Cervical Mucus
Changes in cervical mucus consistency in women are also a clear sign of pregnancy that sisters need to pay attention to. When pregnant, cervical mucus becomes denser and forms a tight mucus plug to prevent the impact of any substances or factors from outside through the vagina into the uterine cavity. If you notice cervical mucus becoming thicker and stickier than normal, consider buying a pregnancy test or having an ultrasound to be sure.
In the early stages of pregnancy, after ovulation, cervical mucus secretion remains dense, clear, and elastic. Conversely, if not pregnant, cervical mucus will become drier and thinner after ovulation, as estrogen decreases. Consequently, cervical mucus continues to be secreted abundantly after ovulation because hormones including estrogen and progesterone continue to increase. Cervical mucus secretion will continue to be abundant for the first 8 weeks of pregnancy. After that, cervical mucus will form a mucus plug to protect the fetus and cervix. Changes in cervical mucus are not a reliable method to determine if you are pregnant, but it can be used as a sign to try a pregnancy test.


4. Frequent Urination
During pregnancy, the uterus will expand to accommodate the growing fetus, creating pressure on the bladder, causing a frequent urge to urinate and frequent trips to the restroom. Additionally, the increased blood volume to nourish the fetus doubles the normal amount, causing the body to produce more excess fluid, making the kidneys work harder, and frequent urination is inevitable. Therefore, pay attention to this symptom to detect early whether you are pregnant or not.
In the first trimester, the main reasons for frequent urination in pregnant women are hormonal changes along with the growth of the uterus causing pressure on the bladder. By the second trimester, the size of the uterus continues to increase to accommodate the fetal weight, but being supported by the pelvic bones helps reduce pressure on the bladder, so in many people, the need to urinate during pregnancy tends to decrease. In the third trimester, during this stage, the fetus begins to turn its head in preparation for birth, exerting pressure on the bladder, increasing the frequency of urination for expectant mothers.


5. Sudden Fatigue Despite Not Overexerting Yourself
During pregnancy, women produce more progesterone than usual, leading to constant fatigue and drowsiness. Additionally, pregnancy causes an increase in heart rate to ensure adequate oxygen supply for ovarian activity. Therefore, during the early weeks of pregnancy, women often feel fatigued due to their bodies not yet adapting to the continuous workload needed to provide sufficient nutrients for the fetus.
However, it's essential to note that fatigue and drowsiness can also result from lack of sleep or overexertion. Changes in hormone levels combined with the growing fetus can make mothers easily tired. The feeling of heaviness and sluggishness can lead to negative emotions. Therefore, women should strive to maintain a positive mindset and identify the causes along with coping strategies for their condition.


6. Heightened sensitivity to smell and changes in eating habits
During pregnancy, women's sense of smell and taste become extremely sensitive, making them particularly sensitive to any unfamiliar smell. Many expectant mothers report becoming more sensitive to smells from the very early stages of pregnancy. This phenomenon is attributed by experts to the increased levels of estrogen in the body during pregnancy. Along with heightened smell sensitivity, pregnant women often experience sudden and unexpected changes in their eating habits. Foods they once enjoyed may now evoke feelings of aversion and disgust.
When discussing signs of pregnancy, one cannot overlook the changes in eating habits of women. Prior to pregnancy, you may have disliked certain sweet or sour foods. However, during pregnancy, you may find yourself craving these foods all day long. This is a common sign experienced by most pregnant women, and you can rely on these bodily changes to detect pregnancy and seek prenatal care.


7. Mood swings
The fluctuation of hormone levels during pregnancy can cause mothers to experience mood swings, also known as emotional roller coasters. The most characteristic manifestation is difficulty in controlling emotions, heightened sensitivity, unpredictable mood swings, and difficulty concentrating. Additionally, pregnancy can lead to memory impairment, insomnia in some, and excessive sleepiness in others.
Uncontrolled mood swings during pregnancy can potentially lead to depression. Signs of depression in pregnant women include poor concentration, difficulty focusing, sudden mood swings, excessive worry about their own and their baby's health, irritability, agitation, and panic. Pregnant women may also experience sleep disturbances, excessive fatigue, and ongoing tiredness.


8. Constipation
During pregnancy, increased hormones in the body cause muscles in the intestines to relax, resulting in less efficient bowel movements. Additionally, the daily growth of the fetus increases pressure on the intestinal walls and disrupts normal bowel function, making mothers prone to constipation. Along with this, uncomfortable symptoms such as heartburn and increased saliva production due to acid reflux into the lower esophagus occur. It can be said that constipation is a very common phenomenon for pregnant women. Therefore, many people mistakenly believe that constipation is a sign of pregnancy. However, this is not correct.
During pregnancy, women's bodies undergo many changes, especially fluctuations in endocrine hormones to protect the fetus. This affects the activity of the digestive system, reducing intestinal contractions, slowing down the transportation process in the intestines, and making waste matter harder. However, as analyzed above, constipation can be caused by other factors, so it cannot be concluded that it is a sign of pregnancy. Therefore, to know for sure whether you are pregnant or not, women should take measures such as using test strips, visiting healthcare facilities for ultrasound, and testing.


9. Buồn nôn hoặc nôn
Nausea and vomiting often occur in 80% of pregnant women. The most common and severe symptoms occur in the first three months of pregnancy. Although morning sickness symptoms typically occur in the morning, such as nausea, vomiting, or both can occur at any time of the day. Symptoms range from mild to severe (known as severe morning sickness). Nausea or (morning sickness) often occurs in pregnant mothers from 4 to 8 weeks old. At this time, mothers will feel constantly nauseous, wanting to vomit whatever they eat. Some cases experience morning sickness when waking up early, while others crave foods they've never touched before.
The physiological basis of nausea and vomiting in early pregnancy is still unknown, although factors related to metabolism, endocrinology, digestion, and psychology may play a role. Estrogen may contribute because high estrogen levels in patients with severe morning sickness. Pregnancy-induced nausea or vomiting can be alleviated by eating or drinking regularly (5 or 6 small meals/day), but only light foods (such as crackers, soda, BRAT diet (banana, rice, applesauce, toast). Eating before getting up may help.


Back pain is a common symptom for anyone, especially women during pregnancy. As the pregnancy progresses, back pain tends to increase. Back pain is also very common in the early stages of pregnancy. During pregnancy, the maternal body produces a hormone called relaxin. This hormone relaxes the pelvic framework in preparation for childbirth, causing ligaments and muscles in the pelvic area to stretch and joints to become looser. The stretching of ligaments and muscles often causes back pain, accompanied by pain in the pelvic area.
Anxiety and stress during pregnancy can worsen back pain because tension prevents the body's muscles from having time to relax and recover, causing increased back pain. Back pain during pregnancy occurs in most pregnant women, with back pain appearing quite early in the pregnancy and increasing as the pregnancy progresses. The body of a woman undergoes many changes early in pregnancy, which are often the common causes of back pain. Many expectant mothers experience mild pain that does not significantly affect their daily activities, but there are also many who experience severe and persistent pain that significantly impacts their daily lives.


