Hi, and thanks for your medical question on eHealth forum!
Well, women with ITP are known to get pregnant and deliver normal healthy babies. However, yes, there is a high risk of further reduction of platelet count, and this will have to be strictly monitored throughout pregnancy.
If you have been trying for 8 years then yes, please consult an infertility specialist. . There are various reasons for this like ovum not being formed, polycystic ovary, hormone imbalance, hypothyroidism, local infection, blocked tubes etc.
In males it can be infection, STD, varicose veins, hydroceles, poor sperm count, not enough motile sperms etc. Since a confirmed diagnosis cannot be given on net and without running some basic tests consult your gynecologist regarding this. Hope this helps. Take care!