What is this ??

Looks like a snail egg

No Egg, it is the same size of a large snail and moves the same

Fleshy limpet?

if it walks like a snail, quacks like a snail,looks like a snail .... it is a snail

i have few to they have like a dome for a shell but its not hard one for them is blue one is pink

It's blurry, that's what it is

http://www.reefcorner.com/SpecimenSheets/stomatella_varia.htm

Similar?

I think it looks more like a limpet than like a stomatella.