Testosterone Cypionate has a very long half-life, measured in days. Some people report 4 days and others report 12 days. Either way, your blood level will only fall a small amount and your current dose will only raise it somewhat since you are getting a new dose each week.
The real question to ask is: Are the blood levels where your doctor wants it to be?
As for dose adjustments: This needs to be discussed with your doctor. As long as the blood levels are above 200 ng/dl you are in the normal male range, which is 119–929 ng/dL. At 696 you are in the normal male range as long as the units are ng/dl.