In vitro fertilization, as you know, is an increasingly popular (although expensive) way for couples to conceive when they have tried other methods without success. In fertility centers, highly skilled and specialized fertility experts have greatly improved the technique in recent years, and the success rates are higher now then they have ever been. That being said, the overall success rate for a single cycle of in vitro fertilization is probably a bit higher than 25%. This means that the majority of couples will still have a treatment failure on a per-cycle basis.
Factors that are associated with treatment failure are numerous and specific to each couple. One of the major factors that leads to failure is maternal age. However, you are very young, so this presumably does not apply in your case. Other factors include poor ovarian reserve (suggesting that the eggs that are used for the in vitro fertilization have a low chance of viability); again this is usually a problem for women much older than you but most doctors will measure hormone levels prior to proceeding with IVF
to gauge ovarian reserve. Other factors associated with failure include abnormalities of the fallopian tubes, uterine fibroids, and cigarette smoking.
Talk to your fertility doctor
, who will be able to answer all of your questions.