No, the detection time will not increase.
The detection time will not increase by much if at all. Methamphetamine
is not one of those drugs
that builds up in the system. Chronic, heavy use will increase detection time, but only to a very small degree.
Exactly how much it will increase I could only speculate, probably only a single day with extreme
use. Because the drug
is clearing out of the system every 4 days at most, a user would have to use more frequently than once every 4 days in order for the drug to build up at all. So using on a Thursday and Friday would likely not increase detection time to any significant extent (because one would be giving 5 days between use, Saturday through Wednesday).