if your period is regular, you can try to use the ovulation test kit.

http://www.amazon.com/Combo-Ovulation-Tests-Detection-Pregnancy/dp/B000GHUVFQ/ref=sr_1_2?ie=UTF8&s=hpc&qid=1253374697&sr=8-2-spell

If you period is not regular, you want to get pregnant , you should try this,

http://www.clearblueeasy.com/clearblue-easy-fertility-monitor.php

I tried the first test kit for 7 month. No sign to get pregnant.  I tried the second one for just a month. I got pregnant this month. I just know the result this morning,

Good luck