Does any one out here know how to distinguish between a false pregnancy & the real thing? I have 2 females that were bred a few days apart. They are due any day now. 1 looks like she's about to pop, she's so big. The other is not showing at all but has gained 1lbs 2ozs & her teats look slightly swollen. I'm not feeling any movement from the babies like the other one either or detecting any heatbeats like my fat mama. Are there any other things I could check for, other than xrays.