There is one technique called microsort, it is used to separate the X and Y chromosome bearing sperm.
Will somewhat increase the percentage of desired sperm.

IUI's success rate is low, ~20%. But dun gv up too soon.
To get a successful pregnancy there are some criteria to fulfill, including the sperm count, follicle size and number, time of LH surge/bHCG injection and the endometrium lining.
If all good then will have higher chance of getting pregnant.

Choose a good doc and a good lab. This plays a major role actually.


If really going for IVF and if your wife is scare of injection, can try ask your doc to gv Elonva, 1 injection is equals to 1 week of FSH injection.