Pregnancy announcement photos

Barbara • 28 and pregnant with baby #2!
Hey ladies! 
For those of you who did pregnancy announcement photos, how much did you pay to have them done? 
I asked a girl I work with to do them as she does photography on the side, but she is going to charge $150, is that too much?
I really don't what to hurt her feelings nor do I know how to tell her I don't want to do them anymore, but that price seems a little high.