The difference between IVF and natural pregnancy
IVF refers to a kind of fertility mode in which the fertilized eggs are transferred into the mother's uterus during in vitro fertilization through artificial assisted reproduction technology. The opposite is natural pregnancy, that is, the fertilized egg is produced through sexual intercourse, and then moves into the uterus and implants. IVF and natural pregnancy are different in many aspects, including pregnancy mode, success rate, timing and possible risks.

Mode of conception
IVF achieves pregnancy through assisted reproductive technology, including in vitro fertilization and embryo transfer. In the process of in vitro fertilization, eggs collected outside the uterus of women and sperm from men are fertilized through laboratory operations. After fertilization, the embryo will be cultured in a culture dish, and then the healthiest embryo will be selected and transferred to the mother's uterus. In contrast, natural pregnancy is the natural combination of sperm and eggs through sexual intercourse and implantation in the uterus.
IVF requires the professional operation of doctors and laboratory personnel, while natural pregnancy is completely dependent on natural physiological processes. IVF pregnancy is more direct, but it also needs more scientific support.
Success rate
The success rate of IVF varies with many factors, including age, fertility and medical conditions. According to statistics, the success rate of IVF is between 30% and 40%. The low success rate may be related to many factors, such as embryo implantation failure, increased risk of abortion, etc. On the other hand, the success rate of natural pregnancy is not completely controllable, and there is only a small probability of successful pregnancy every month.
IVF can screen the fertilized eggs in the laboratory and select the healthiest embryos for transplantation, thus improving the success rate of pregnancy. This is one of the reasons why some couples with low fertility choose IVF.
Timing
The process of IVF needs to go through many stages, usually a few months to a year. This process includes lifestyle adjustment, medication, assisted reproductive technology operation and embryo transfer. In contrast, natural pregnancy only requires sexual behavior between couples, and there is no clear schedule.
Test tube babies are scheduled more closely and in a planned way, and couples need to cooperate with the hospital schedule for various examinations and treatments. This may be an advantage for some couples who want to give birth as soon as possible.
risk
Compared with natural pregnancy, IVF may face more risks. Assisted reproductive technology may increase the risk of multiple pregnancy, and multiple pregnancy may bring higher risk of complications. In addition, the operation and drug treatment of IVF may also lead to some adverse reactions.
The risk of natural pregnancy is relatively small, but it may also face risks such as miscarriage and abnormal fetal development.
Summary
There are obvious differences between IVF and natural pregnancy in terms of pregnancy mode, success rate, timing and possible risks. IVF achieves pregnancy through assisted reproductive technology, and the success rate is affected by multiple factors. At the same time, the schedule is closer, but it may face more risks. Natural pregnancy depends on natural physiological process, with uncontrollable success rate, flexible schedule and relatively low risk. The choice of IVF or natural pregnancy depends on personal conditions and doctor's advice. Couples should fully understand the advantages and disadvantages of the two methods, and fully discuss and make decisions with doctors.