Pregnancy Treatment India,Cost Pregnancy India,Pregnancy Mumbai India
Pregnancy Treatment India,Cost Pregnancy India
,Pregnancy Mumbai India
Pregnancy
Pregnancy is the carrying of one or more offspring, known as a fetus or embryo, inside the womb of a female. In a pregnancy, there can be multiple gestations, as in the case of twins or triplets. Human pregnancy is the most studied of all mammalian pregnancies. Childbirth usually occurs about 38 weeks after conception; i.e., approximately 40 weeks from the last normal menstrual period (LNMP) in humans. The World Health Organization defines normal term for delivery as between 37 weeks and 42 weeks.
Pregnancy occurs as the result of the female gamete or oocyte merging with the male gamete, spermatozoon, in a process referred to, in medicine, as fertilization, or more commonly known as "conception". After the point of fertilization, it is referred to as a zygote or fertilized egg. The fusion of male and female gametes usually occurs through the act of sexual intercourse, resulting in spontaneous pregnancy. However, the advent of artificial insemination and in vitro fertilisation have also made achieving pregnancy possible in cases where sexual intercourse does not result in fertilization (e.g., through choice or male/female infertility).
The process of fertilization occurs in more than a single step, and the interruption of any of these can lead to a failure. Therefore, what is commonly known as "conception" is much more than the fusion between the female gamete and male spermatozoon. Through fertilization, the egg and sperm are saved: the egg is activated to begin its developmental program, and the haploid nuclei of the two gametes come together to form the genome of a new diploid organism
At the very beginning of the process, the sperm undergoes a series of changes which makes pregnancy likely to occur. As freshly ejaculated sperm is unable or poorly able to fertilize, the sperm undergoes the phenomenon called capacitation. It is estimated that during the ejaculation, 300,000,000 sperma is released, from which only 200 reach the oviduct. Capacitation is the process through which the spermatozoon is prepared for the merging with the egg. Capacitation occurs in 5 to 6 hours and it takes place once the sperm reaches the vagina.
This is also the process through which the spermatozoon becomes hyperactivated and prepared for the acrosome reaction. In order to be able to fecundate the egg, the sperm must get through the coat surrounding the egg, the so called "zona pellucida". Once zona pellucida is penetrated, the sperm is able to reach the oocyte. But in order to get through the egg's coat, the sperm undergoes an acrosome reaction that provides it with and enzymatic drill which is able to penetrate zona pellucida. The acrosome itself is a modified lysosome, situated on the anterior part of the head of the sperm.
Symptoms of Pregnancy
For a woman having a regular monthly cycle, the earliest and most reliable sign of pregnancy is a missed period, or sometimes women who are pregnant have a very light period, losing only a little blood. However, symptoms of pregnancy are very obvious, and keep changing with the pregnancy calendar.
Some of the most important pregnancy symptoms are : -
Feeling sick, not necessarily in the morning, but at any time.
The breasts may become larger and tender. Veins may become prominent and nipples may darken and stand out.
Increased frequency in passing urine.
Tendency for constipation.
Tiredness.
An increased vaginal discharge without any associated complaint.
A metallic taste in the mouth.
Dislike for certain things like tea or coffee or fatty foods.
Increased liking for certain things like spicy foods.
Pregnancy test can be carried out on urine samples, as early as from the first day of a missed period-that is, about fourteen days after the conception.
A positive pregnancy test result is almost definitive of pregnancy. If the test is negative, it is less reliable. It can be repeated after a week, or a doctor can be consulted.
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