Try not to stress if everything is ok your ILR will be granted. I put a note on my calender for 14wks (the time you are allowed to contact them to ask about progress of application) luckily we never got there it came at 5 wks it seems things are taking between 3 and 13 wks you cant stress that long ...

22 FEB Application sent 24 FEB Money taken from account 26 FEB letter received dated 23 FEB advising Application received and passed to caseworker. 30 MARCH ILR granted 31 MARCH passport and documents received 5 weeks 1 day from date they received application :D yay ! can now book our summer hols 8 ...