One factor influencing the timing is that the endometrium changes, thickening and shedding, throughout the menstrual cycle. It is only receptive to a blastocyst for a few days in each cycle. Even if the timing is right, implantation may not happen.
According to researchers , a lack of implantation is a common cause of early pregnancy loss. Implantation bleeding is spotting or light bleeding that takes place about 1—2 weeks after fertilization. It is usually short-lived and lighter than a normal period. The blood is often paler than menstrual blood or can be a rusty brown. There has been little research about implantation cramping, but it may affect the lower abdomen or back and feel like:.
Early pregnancy can cause additional symptoms, which may start a short time after implantation and continue for the first trimester and sometimes beyond. They can include:. A timeline of implantation and early pregnancy includes the following events, based on a day menstrual cycle:. The following symptoms can indicate implantation, but they can also have very different causes, including pregnancy loss.
It can be a sign of implantation, but it can instead point to:. Also, bleeding sometimes happens due to a pelvic examination, sex, or a Pap smear. Cramping or lower back pain can indicate implantation, but it can also occur with early pregnancy loss.
Because pregnancy tests are now so sensitive, some people know when they have experienced a very early pregnancy loss, known as a chemical pregnancy. The loss occurs at just around 5 weeks. Know More. How much does it cost to adopt an embryo? What Common conditions that affect male infertility is teratospermia?
What happens during and after implantation? What Is a Uterine Fibroid? What is Asthenozoospermia? What is Obstructive and Non Obstructive Azoospermia? What Is Ovarian Hyperstimulation Syndrome? What is meant by assisted reproduction? What is PGD and when is it done? What is Stability and Durability in Vitrification? What is the Normal Morphology of Sperm?
What is the percentage of infertile couples in different age groups? For most people, implantation feels like nothing and some report feeling a few symptoms. Langdon tells us, but some people may not notice any symptoms of implantation at all. June 28, Pregnancy Health. Before you take a pregnancy test, here's what to know. Babylist editors love baby gear and independently curate their favorite products to share with you. If you buy something through links on our site, Babylist may earn a commission.
What is implantation? Since implantation happens so close to the start of your next period, any spotting you may experience is often mistaken for the beginning of your menstrual cycle. But instead of experiencing your usual PMS symptoms, your body will produce the human chorionic gonadotropin, or hCG , hormone instead. HCG is what pregnancy tests detect to indicate you're pregnant.
For the most accurate reading, you should take a pregnancy test after your first missed period. One of the most apparent signs of implantation is light bleeding or spotting. But because the other symptoms that come with implantation are similar to your usual menstruation, it can be difficult to differentiate the two.
Therefore, some women may not suspect pregnancy until they miss a period. And if you're still not sure if these are symptoms of your regular menstrual cycle or of early pregnancy, take a pregnancy test to verify any suspicions. Just make sure to follow the directions for the test, and take the test at the right time , or you may get an inaccurate result.
0コメント