Ok, so I had 1 male guppy, 3 female guppies. 1 male guppy is alive. 1 female guppy died unrelated. 1 female guppy just had birth last night. I saw one baby but am pretty sure they will be eaten. 1 female guppy still late stages of pregnancies. I was planning on moving to 2.5g for babies tonight when I get home assuming no babies yet. How do I know if she is about to have babies?