You definitlydefinitely need to wait until you have cycled the tank properly,This this means waiting until you have measured first measured non-zero amount of ammonia present in the tank.
When ammonia is present you need to wait until you can measure non-zero amount of nitrite in your tank.
When both ammonia and nitrite have dropped to zero and you are able to measure non-zero amount of nitrate in your tank, you can start to think about adding shrimpsshrimp to your tank.
When testing your water please use a liquid test kit and not the 5 in 1 test strips as they are not very sensitive for ammonia and nitrite (as iI just found out AGAIN).
I want you to read and understand what you read here https://www.fishlore.com/NitrogenCycle.htm before you even start thinking about adding shrimpsshrimp to your tank.
iI have just got myself about 20 red crystal shrimp and added them to a well cycled tank no. No ammonia or nitrite is present in my tank,and and still iI have found two dead so far, so you need to be patient before you add any type of life to your tank.
iI have had aquariums fromsince 1974 and until now and have gained some fundamental experience during the years,There. There are no shortcuts when you cycle a tank, it takes the time it takes depending on your setup.
Shrimp are very sensitive to the water quality, so if it is possible try to buy them from a shop that havehas the same water supply as you have at home.