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Over all success of IVF/ICSI
is around 35-40 % ( age of female < 35 yrs). As age increases quality and quantity of egg decreases and success rate comes down to around 10-20%( Females > 35 yrs). May be this time you were unlucky. You can definitely go ahead with another ICSI. ICSI with donor egg will give you much better chance. Other additional factors contributing to your infertility
are equally important and should be taken care of.