When Does Implantation Occur? Signs and Symptoms!

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When Does Implantation Occur? Signs and Symptoms!

When Does Implantation Occur? Signs and Symptoms!

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If you’re prepping for your parenthood journey, you’ve probably heard or read about the term implantation. You may have heard about implantation bleeding or implantation cramping and might be looking for the details of when and how this happens!

For all the couples planning for pregnancy, the phrase “getting pregnant” is not as easy as it sounds. Your body undergoes a whole dramatic process at the time of conception, and Implantation is a significant biological event and the critical stage in the entire pregnancy.

Implantation is when the fertilized egg implants and attaches itself to the uterus lining, the beginning development stage for the embryo and placenta. Implantation usually occurs after a few days of ovulation, reflecting the beginning of pregnancy. 

Early pregnancy or the first pregnancy can be confusing, especially when you’re not sure whether you’re pregnant or not. Although some women may not even notice or go through the implantation symptoms, others might experience periods- like a bit of spotting, cramping, and other related signs.

 This blog will help you with the detailed facts about implantation, what it is when it happens, and the signs of implantation. Scroll down to know everything about the beginning stage of pregnancy!

What is Implantation?

Implantation is an early sign of pregnancy. After the egg and the sperm join and travel down the fallopian tube through the uterus, they divide into multiple cells and form a cluster of about 100 cells. This cluster of rapidly multiplying cells is called a blastocyst.  

Blastocyst can easily be understood with a reference to an orange, a thin outer layer with a larger inner group of cells. 

This little bundle of cells has to attach itself to the uterus or implant into the uterine wall, resulting in the implantation process.

This step further triggers and increases the levels of all pregnancy hormones, including estrogen, hCG (human chorionic gonadotropin), or progesterone. If implantation fails or doesn’t happen, the uterine line sheds, resulting in regular monthly periods. But if it occurs, then the embryo and placenta develop while keeping the uterine lining in place to support your future baby.

When Does Implantation Occur?

Implantation usually occurs after 24-26 days of your cycle or 6-12 days after you ovulate. Therefore, the exact date of implantation depends on your ovulation period and the conception period, whether it occurred late or early in the ovulation window.

Since implantation happens near the start of your next period, you may experience some spotting or bleeding, which is often mistaken for the beginning of your menstrual period. But apart from your natural PMS symptoms, your body produces more hCG hormones during implantation.

Therefore, you need to notice every minor change in your body to know what’s happening. Moreover, you can take pregnancy tests to clarify your pregnancy status after a first missed period.

Implantation and Pregnancy Tests

Pregnancy Tests detect the presence of hCG (human chorionic gonadotropin) hormone levels in your body. hCG is produced with the development of the placenta, and timing plays a significant role in pregnancy test results.

In the early stages of pregnancy, hCG levels are low in the urine because there hasn’t been enough time between testing and implantation, and hCG levels in the body may vary. A pregnancy that has been implanted only four days before your period is known as the early pregnancy phase and is usually not detected by the test kits, resulting in increased chances of false-negative results.

Signs of Implantation

Symptoms and signs of implantation are your body’s way to welcoming pregnancy, and some women might assume a lack of symptoms- which further does not mean that you’re pregnant.

Most of the implantation symptoms are similar to that of menstruation signs, and it can be challenging to differentiate between the two.

Light bleeding and spotting are the most apparent signs of implantation, and around 15-25% of women experience spotting in their first trimester.

Some of the other common symptoms of implantation are: 

  • Vaginal Spotting and Bleeding-

 Some women might experience sight bleeding or spotting in their early pregnancy days, and it is presumed to be related to implantation. Almost 15-25% of women experience bleeding, and it happens when the fertilized egg is implanted into the uterus.

 This irritates the uterine line and results in spots that usually last for 1-3 days. But unlike menstrual bleeding, implantation blood is usually brown or light pink, and the flow is also light. 

  • White or Clear Vaginal Discharge

 You might also experience a slight difference in the mucus during ovulation. It would be slightly thicker, yellow, and white after implantation instead of clear and stretchy. This symptom is less common than spotting and lasts only for 1-2 days. 

  • Mild Uterine Cramping

 Early pregnancy causes a rapid shift of hormones precisely triggers the levels, further resulting in cramping. Some women might feel lower back pain, tenderness, or cramps which typically lasts only for a few days. 

  • Swollen or Tender Breasts

 Your breasts may feel sore with the surge in hormone (hCG, estrogen, and progesterone) levels. Some women might experience tenderness and breast swelling before their periods, but the same symptoms during implantation are more noticeable.   

  • Bloating

 Rising hormone levels during early pregnancy also lower the functioning of the digestive system, which might make you feel bloated. But this sign is also common during the menstrual period, making it difficult for the aspiring mother to conclude. 

  • Headaches

 Hormone surge is the main reason behind most pregnancy and menstrual symptoms. It can also lead to a headache- following implantation. 

  • Nausea

 Morning sickness is one of the most common early pregnancy symptoms. Increased progesterone levels may lower your digestion, making you feel nauseous and increasing the sensitivity toward the smell, making the problems worse sometimes. 

  • Mood Swings

 Mood Swings are also one of the symptoms reflecting implantation. This might happen due to rising hCG levels, progesterone and estrogen, making you feel dull or moodier than usual.

What is Implantation Dip?

You may have heard about cold flashes during pregnancy or menstrual periods. This usually happens during the second half of the menstrual cycle when the women’s body temperature starts to rise suddenly, hiking up to 1 degree at fertilization.

This further remains elevated during your entire pregnancy journey, reflecting successful implantation. If it drops back down to normal, it reflects that your period is about to come.

What are the Problems Related to Late Implantation?

Pregnancy is an entirely mysterious process, and implantation is an essential yet critical part of the journey. This is an easy-to-miss event due to mild or menstrual-related symptoms.

Sometimes, the implantation of an embryo also happens without a hitch, leading to increased future risks. Some of the related events include- 

1. Late Implantation

 Late implantation happens when the embryo implants at the latter end of the implantation window within 6-10 days. This sometimes increases the risk for miscarriage and can happen due to old maternal age and maternal smoking. 

2. Implantation Failure

 The causes of implantation failure are always unknown and are more likely to happen due to uterine abnormalities like polyps, endometriosis, or embryonic abnormalities. When it happens more than 3 times during the IVF procedure, it is referred to as RIF (recurrent implantation failure). 

3. Ectopic Pregnancy

Implantation mainly occurs inside the uterus, but there is less than a 3% chance that sometimes the egg implants outside the uterus. This is referred to as ectopic pregnancy and is dangerous for pregnant women. Consult your doctor to see if you feel something strange about the ideal medication and fertility treatment.


 Implantation is crucial during early pregnancy and usually occurs within 6-12 days after conception. Some women might notice the signs and symptoms, including light bleeding or spotting, and others might lack these signs. And the frustrating part of the phase is that most of these symptoms are similar to that of PMS.

The experts at Aastha Fertility Care will help you with all the signs and symptoms, guiding you to the best infertility treatments for a successful pregnancy. Moreover, the centre also holds its record for the highest successful IVF treatments and deliveries in India, assisting all its patients throughout their journey.

 Book your Online Consultation Appointment now for the best advice!

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