Chances are there are no problems, or they would have already called you. I wouldnt sweat it, Dr.s are great at calling if there is a problem especially with pregnant women. Good luck tomorrow and enjoy these joyous 9 months
My doctor always goes by "no news is good news". i've never gotten a call back with all these different tests they do each appt. 5 weeks is a long time, i'm sure you're fine :)
Usually they call you if there's a big problem so I would try not to worry. If you're really concerned, give 'em a call and see what they say :).