A little more information related to the reason for your IVF failure would help. Were all of them fresh cycles?Was the problem related to eggs/sperm or embryos? If any of these was the case, you may consider egg/sperm donation if your uterus is fine.
Next Steps
Have a hysteroscopy done if not already done along with a check for tuberculosis of uterus.
Health Tips
If above things don't help, see a fertility specialist who is well versed with third party reproduction.