If your shrimp is sick, she would likely be dead. Generally, fading of the red color for any grade of the red variation of the neo strand indicates that they stressed out.
What you have are cherry grade neocardina shrimps. They are one of the most common dwarf shrimps kept in the hobby, they are also the hardiest.
Things that would stress out a cherry shrimp:
1. Rapid temperature fluctuation - like if your tank is 78 in the day and 70 at night.
2. Presence of ammonia, nitrite, or too high level of nitrate. Cherries are one of the few dwarf shrimps that "can" survive in a non cycled tank, but it will stress them out and they will not breed in a non cycled tank. Even if they do, most of the shrimplets will die.
3. Water change - One of the most important part of keeping shrimps is maintaining stable water conditions. If you water change too often, or too much at once, it will stress them. As well as if you water change with water with parameters too different from their current parameters.
4. Shrimps needs a gh of 4-14 to molt correctly, if you do not maintain a gh within that limit, they will die from molting problems eventually.
To get them to breed to must be able to maintain a stable water parameter of 0 ammonia, 0 nitrite, minimal nitrate. ph 7-8 (Neos are one of the few that enjoys higher ph), gh 4+. There also needs to be lots of biofilm for them to pick on. If you can maintain that, they should start breeding within a month if they are at breeding age and you have both genders.