She seems sick today. I tested the water and everything is good...not sure what's up. The only thing I have done different lately is feed frozen bloodworms but she refused to eat yesterday anyways so never had any.
No, The "pearl" located on her tummy is an ovipositor or egg spot through which the eggs pass. It should be white in color, Means shes full of eggs and ready to spawn with a male.
When they are full & ready the pearl spot should be easily seen.