I read somewhere that the female goldfish is usually fatter, and I thought maybe 1 of my goldies was a female. Now I'm pretty sure, because I think she might be pregnant. She lookes fatter, but not bloated like she has dropsy, and the other one won't leave her side. How do I know for sure if the goldie is pregnant, and am I tottally wrong and she's sick, not pregnant? ??? Oh, yeah, the male seems really protective of the female.