Have you changed equipment, eaten any food, cast Bless, etc?
If you wait long enough for any food/potion/spell effects to wear off and remove all equipment with stat bonuses (or make sure to take them into account), then the sum of
strength + agility + intelligence + constitution + any unassigned stat points
should be equal to
40 + 5*(Character Level) + ...
Minor spoiler on some events which can effect your stats, after leaving Aleroth and exploring more of Rivertown.
40 + 5*(Character Level) + (+5 or -5 bonus from Shrine of Good and Evil) + (+5 or +10 stat bonus from Wishing Well, if that was the wish you made) - (1 to 4 stolen by vampire in the dark cave if you saved the boy)
