LeNautilus
From what you have posted, I am guessing she would not be allowed in until you have your RP and your Family Entry Visa.
I suggest you call your joining coordinator and ask.
My wife entered on a tourist visa and then had to stay in the country until she got her RP which took about a month to get.
Is the a Qatar Embassy in the country you are coming from ? can you not get in touch with them and ask.