Could you please help me with my scheduling?

<p>Hi guys, I'm a junior who's currently planning to take</p>

<p>SATII MathIIC
SATII US History
SATII Biology</p>

<p>Everything was fine and dandy as I cruised along collegeboard's online registration, until I found these horrific words: "There is a $20.50 fee for changing your test date, test type, or test center after you submit this registration."</p>

<p>Then I freaked out.</p>

<p>For more background information: I'm taking the APUSH test, AP Bio Test, and AP Stats Test in May. I'm also (obviously) taking those classes, and pertaining to SATII MathIIC, I'm taking regular PreCalc (It was a horrible mistake to drop, I'll be making friends with my Barron's book for quite awhile).</p>

<p>Anyway, I was hoping that you guys could help me; I really don't want to waste my mommy's $20.50. :[</p>

<p>Thanks in advance! (and have a nice day!)</p>