Having undergone IVF does not affect natural pregnancy. IVF is mainly for patients who cannot conceive normally due to physical reasons, such as failure of IVF, untreated physical illnesses, and the chances of natural conception are also very small. To conceive naturally, the body must have normal conditions for conception. A woman must have mature eggs to be released, and if she suffers from ovarian disease or irregular menstruation, ovulation will also be affected. A woman’s uterine environment should be suitable for the fertilization of eggs, if the lining of the uterus is too thin, it will be difficult to conceive and easy to miscarry, the man needs to have good quality sperms, no dead sperms, oligospermia symptoms, the vas deferens is open and the coitus should be in the woman’s ovulation period, only the combination of eggs and sperms will produce fertilized eggs, only when these conditions are met can natural fertilization take place. The success rate of IVF is around 30%. If conception fails, the cause of the body’s inability to conceive must be identified and treated before conception can take place.