I don't think it's called IUI (Intrauterine insemination) when the sperm is not washed, I believe it's ICI (intracervical insemination) and the unwashed sperm is deposited directly in your cervix opening, not inside the uterus, therefore is simpler and less expensive.

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Ainara (29) DH Zoran(41)
DS Adriano (7) natural preg.
TTC #2 since '04
Clomid x3
IUI w/Clomid X1
Dx. MF Aug.'07
IVF #1 March/April '08
E/R 4/14 25 eggs15 fertilized
E/T 4/19 2 Blast.
1st. Beta 4/28 174
2nd, Beta 4/30 336
1st. U/S 5/12 no HB detected/1 sac.
2nd. U/S 5/19 blighted uvum.
Cytotec induced M/C 5/20. (at 7w1d)
IVF #2 (FET) Sept./Oct.'08