Can family enter Qatar straight away??

Hi My partner has just been offered a job at as a physiotherapist in Doha. Is it possible for me and our son to enter the country with him ? We will be married before we leave, but I've come across sites which say the family has to wait until the family residence visa comes through before we can follow. Is it possible for us to enter on a visit visa and get family resident processed while we're there? Would love some advice, panicking slightly!!