When will my guppy give birth?

December 1, 2006 11:16pm CST
I have 3 females and 1 male fish. I bought the first female about a month ago and she had 2 babies. she still has a spot on her bell and she is doing the same things as if she was pregnant. She hasn't had any babies since. Can anyone help or give advice. P.S. she sits on the bottom and dosen't eat much.
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