The reason is often poor quality embryos - and this is often because of a poor quality IVF clinic.
The tragedy is that most patients are not unaware of the reason their IVF cycle failed, because doctors refuse to give them photos of their embryos !
This is a red flag - good clinics provide embryo photos routinely and proactively to all their patients, to document they have done the treatment properly, and to enhance trust !
Need help in analysing why your IVF cycle failed ?
Please send me your medical details by filling in the form at www.drmalpani.com/free-second-opinion
so that I can guide you !