So I'm not sure if my guppy is pregnant? She has a dark gravid spot and a slight bulge on belly, it's not a big as google pictures of pregnant guppies.Today I was concerned as she seemed to be getting cornered by my other guppies and platies. I was worried she would be getting stressed so I moved her into a isolation box. Is it possible she was being chased because pregnant even though she hasn't a massive belly. I have had her for 4 weeks now and never had this problem before.