I would have to agree with @Terretta. A launch price is probably your best bet while your user base grows, praises and criticisms flow in (along with reviews),

I would have to agree with @Terretta. A launch price is probably your best bet while your user base grows, praises and criticisms flow in (along with reviews), a few updates to the program happen and you finally settle on a price that can sustain further development and feed your family. All of this is moot if $14.99 is indeed your launch price.