I clipped her nails earlier today to get her ready for babies. I always make sure my does have short, trim nails before delivering. When they're stressed and in labor, they can be running around crazily and pull out a nail. The last thing they need while in labor is pain from their foot and more blood. Also, when a doe jumps into the box to nurse or deliver, sometimes she'll step on the babies and sharp nails can cut the kits.
While clipping, I felt her tummy for babies. I felt several little kicks! The kicks are very easy to feel after these couple litters I've had. At this point, if there were no kicks, I would know she isn't pregnant. The kicks are similar to her heartbeat, but obviously that is much faster and rhythmic, and higher up on her chest instead of in her belly. I'd say there are at least 3 babies because of how many kicks I noticed and where they were in her tummy. Since she had 6 last time I'm sure she'll have around the same amount this time, which is good because I may keep a buck or doe and I have a large list of people waiting for babies!