How long does it take for the embryo to implant in the uterus?
How long does it take for the embryo to implant in the uterus? – Embryo implantation is the stage in pregnancy in which the fertilized egg, also called a blastocyst, attaches itself to the uterine wall lining. This implantation marks the commencement of pregnancy. In other words, until the implantation takes place, a woman is not regarded as pregnant.
When Does Implantation Take Place in Normal Pregnancies?
To get an answer to this question, you will have to understand how you become pregnant. Here is a step by step guide:
- When you engage in unprotected sex, sperm passes through the vagina and get past the cervix to reach up to the fallopian tubes. Here, a sperm is most likely to combine with an egg.
- When the sperm combines with the egg, fertilization takes place.
- The fertilized egg then travels up to the uterus for implantation. At the same time, it continues to grow in size even as its cells divide and reproduce.
- Once this fertilized egg finds the right spot in the uterine wall to attach itself, it gets ready to implant at that spot.
- With implantation, the fertilized egg gets attached to the uterus lining and the pregnancy starts. About 30% of women experience slight bleeding when implantation occurs in their uterus.
So, the embryo implantation time in the uterus is generally 7 to 14 days after you have had sex and Embryo implantation.
When Does Implantation Take Place in IVF?
In the case of in vitro fertilization (IVF), the fertilized eggs or human blastocysts normally hatch out of their shell and start to implant about 1 or 2 days after the 5th day of the IVF blastocyst transfer. This means the implantation takes place about 7 to 8 days after fertilization of the egg. The time required for implantation in both the cases, normal pregnancy and pregnancy through IVF, is more or less the same.
How Many Days After Egg Retrieval Is Embryo Transferred?
For couples who are unable to conceive naturally, IVF can be a boon. There are many stages in an IVF procedure. Among them, the last and the most important one is the embryo transfer. In this article, we will discuss embryo transfer and the time taken to transfer and embryo post fertilization.
What is Embryo Transfer?
First things first, let us understand the basics of the procedure. Embryo transfer is a process in which the embryos are transferred into the uterus to implant and establish a pregnancy. At first, medications for oocyte maturation are given that would stimulate the womans ovaries to produce eggs. Through an egg retrieval procedure, the eggs are removed and fertilized with sperms in an IVF laboratory.
After the fertilization, through embryo transfer procedure, one or two embryos are placed in the uterus. A catheter through the vagina and the cervix is inserted into the uterus. With the help of a syringe that is placed at the end of the catheter, the embryos along with a small amount of fluid are injected into the uterus.
Time Taken for Embryo Transfer after Fertilization
Now that we know the basics, let us discuss the time taken for the procedure. Usually, embryo transfer after fertilization is done three to five days after egg retrieval. The fertilized egg is cultured for 3 to 5 days. During which, the embryo transfer can be performed at the cleavage stage i.e. 3rd day after co-incubation or blastocyst stage i.e. 5th day after co-incubation.
You have to go for a follow-up consultation after 2 weeks of the embryo transfer. This is to ensure that that transfer was successful and the doctors confirm this by the Positive Serum b-hcg level in your body.