I've had a few gravid females that I've tried to palpate, but I personally did not have much luck feeling any eggs. I've heard others on here that have successfully been able to feel eggs, but I think I was a little too timid to "really" feel around for them. I've seen my vet palpate and he worked his fingers much harder than I would ever feel comfortable doing.
Have you noticed any weight changes? For me, it's relatively easy to tell if there are eggs by either weight changes or looking for lumps on her sides. Are you worried about her being possibly eggbound? Having 1-2 eggs in her?