It is quite common the develop swelling in the legs towards the end of the pregnancy
. Hands and fingers may also swell with rings becoming tight. You don't say in what sample the doctors found the albumin
trace. I'm assuming urine. Again, this is not unusual in the later stages of pregnancy. If these symptoms get a lot worse then it could be pre-eclampsia. You don't mention her blood pressure so I assume it was normal in which case your wife's symptoms are most likely to be normal for this stage of her pregnancy.