yea I know that but it seems like my female guppies eyes are really dark right now and shes kinda fat so I didnt know if that was one of the signs that you can look for if she was pregnant also or what.
I've never heard that darkened eyes is a sign of pregnancy. Your Guppy could just be fat. One of mine is always fat from hogging too much food! : Does she have a gravid spot--a large dark triangle underneath the belly, right above the analfins?
If it's really light, like a brownish color, then she is probably not preggy. I observed that in my 4 Guppies, even my 2 fry who have never seen a male livebearer, you can see the area where the gravid spot would be, just not as dark. I don't know why this is. If the Guppy is pregnant it will be black.