We picked up a few dalmatian mollies from our local petsmart about a month and a half ago. They were both supposed to be males, but when we brought them home we discovered that we had one male and one female (I am assuming that they make mistakes on stuff like this occasionally). Last week I noticed that the female was getting fat and "blockish" in her belly. I looked online for some information, but discovered that she was nowhere near as big as these pictures of pregnant mollies on the internet. I also can't find the "gravid spot" everyone seems to be talking about (and she is mostly white). I just wanted to get some opinions on whether or not she is pregnant, as I have never had a pregnant fish before and I might just be crazy. She is getting pretty territorial and has forced the male to stay on the other side of the tank, but she doesn't seem to be aggressive toward any of the other fish. I just want to make sure I am prepared if she is going to have fry, because I want to give them a chance to survive. It was hard to get a good photo of her belly, so I just attached the best one I had. I also attached one of her next to the male for belly comparison, as they were the exact same size when we got them. Any advice is appreciated!