How Many IUIs Does It Take to Make A Baby?

How many IUIs does it take to make a baby?  Well in my case we know the answer is more than 3.  My 1st, 2nd, and 3rd IUIs were all big fat negatives.  I am still in a bit of disbelief that I did not get pregnant the first go-round.  After 3 negatives I find myself laughing when I think about my first time.  I was so paranoid that I made my then college boyfriend come with me to the store where we purchased both condoms and a spermicide.  I always insisted on two forms of birth control. Who knew it was really this hard to get pregnant. Now, two forms of birth control seems like overkill.  But who knows.  I'm sure I was much more fertile at 20 than I am now at 35.
My friends keep telling me it will happen when it happens.  Well here's to hoping it happens soon.  Below is a live video of  my 4th IUI.  If you have trouble viewing the video click here >> IUI #4 Live <<.

Did it take you a while to get pregnant with your bundle of joy?  What was your experience like trying to conceive?