LAGOS Reproductive Center

Events of Pregnancy
Day 0- fertilization
Day 4- morula
Day 5- blastocyst
Day 6- implantation starts
Day 8- bHCG start synth
Day 11- implantation completed
Day 11- uteroplacentl circulation
Day 13- primary villi forms
Day 14- haematopoisis starts in yolk sac
Week 2 - bilaminar disc
Week 3 - gastrulation, trilaminar disc
Day 21- fetoplacentl cirultn
Day 25- anterior neuropore closes
Day 27- posterior neuropore closes
Week 4-5 gestatnl sac
Week 5- 44 somites formd
Week 6- fetal cardiac activity by TVS
Week 7- embryonic movmnt
Week 3to8- embryo
Week 8 to 14- max risk of radiatn
Week 9- early detectn of anencephaly
Week 10- physiolog umb hernia
Week 11- thyroxine productn starts, breathing movmt begins
Week 12- urine productn starts, ADH functns
Week 10 to 12- chorionic V Samp done
Week 11 to 13- nuchal translucency checkd
Week 12 to 18- amniocentesis done
Week 18 & above- cordocentesis
Week 18- anamoly scan
Week 16- quickening starts(multi), W18(primi)
Week 20- meconium forms, keratinstn of fetal skin
Abve W20- no abortn performd
Week 20- external balotment
Week 24to 28- GDM screening
Less than week 28- extremly premature
W28 to W32- very premature
W30 to 32- maternal blood volume reach max
Week 38- lightening of pressure symptm
Above Week 42- post-mature www.lagosivf.com

In Vitro Fertilisation Process is where eggs are collected from the o***y, fertilised with s***m in the laboratory and replaced back into the uterus, hopefully generating a successful pregnancy.

At Lagos IVF the majority of our patients under a short-cycle IVF treatment known as an Antagonist Cycle. On average the Antagonist Cycle time frame from a patient telephoning with their period to pregnancy test is approximately 4 weeks. This treatment is better for women because it is less stressful, it has fewer side effects and is much quicker, so couples see results earlier.

IVF Process

The IVF process is where eggs are collected from the o***y, fertilised with s***m in the laboratory and replaced back into the uterus, hopefully generating a successful pregnancy.

At Lagos IVF the majority of our patients undertake a short IVF cycle known as an Antagonist Cycle. On average the Antagonist Cycle time frame from a patient telephoning with their period to pregnancy test is approximately 4 weeks. This treatment is better for women because it is less stressful, it has fewer side effects and is much quicker, so couples see results earlier.

What happens during the IVF Process:

Step 1 – Egg Collection

The starting point of the IVF process is obtaining eggs from the ovaries. This is done by administering injections of FSH (Follicle Stimulating Hormone), which encourages the development of several follicles (sacs on the ovaries that contain eggs). There are usually 5 – 10 sacs, however the number can vary immensely. This process normally takes about two weeks. Once enough follicles have developed, the eggs are removed from the ovaries by passing a needle into the fluid filled sacs that contain the eggs (follicles) and aspirating them out. This is a simple procedure that is performed in theatre by a doctor under a light anaesthetic.

Step 2 – S***m Preparation

While the eggs are being collected in theatre, the semen sample is also being prepared. Depending on the quality of the semen sample there are different preparation methods that can be performed, however the most common method is called a density gradient preparation. The semen is added to a test-tube that contains a special media, which filters out s***m that have poor motility. If the s***m count isn’t ideal, or if the man has had a surgical s***m collection, the s***m sample will be spun to concentrate as many s***m together as possible. These samples are then used to inseminate the eggs.

Step 3 – Insemination

There are two different types of insemination techniques. IVF standard insemination or ICSI (Intracytoplasmic S***m Injection). IVF standard insemination is used in patients that have normal s***m parameters and this involves the scientist in the laboratory placing the eggs and the s***m into a dish and leaving them overnight so that fertilisation can occur. If there are severe problems with the s***m, or if IVF standard insemination has failed previously, IVF is combined with ICSI, where scientists inject a single s***m into each egg. These are then also left overnight in the hope that fertilisation will occur.

Step 4 – Fertilisation

The morning after the egg retrieval, the scientists check the eggs for signs of fertilisation. If normal fertilisation has occurred the fertilised eggs are now called ‘embryos’ and are grown in the laboratory until they are ready to be placed back into the uterus.

Step 5 – Embryo Culture

Embryos can be grown in the laboratory for up to six days after egg retrieval. They can be replaced back into the uterus at a variety of stages depending on what you have decided with your doctor. At Lagos IVF, we offer two different stages of embryo culture and transfer, either ‘cleavage stage’ or ‘extended/ blastocyst stage’. Cleavage stage is the term used for either day two or day three embryo culture and transfer. This is beneficial for couples that hav

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Lagos IVF ::. Lagos Reproductive Healthcare Limited Lagos IVF specialises in IVF and infertility treatments with IVF clinics based in lagos.