All beardies have a different bowel movement schedule and I wouldn't worry just yet since you only just got him and still have time to fix the issues that I have a feeling you have to avoid impaction and other issues.
But instead of assuming I will ask the questions first.
What substrate/flooring/bedding does he have?
What sized tank does he have?
What temps is his basking spot,warm side and cool side, along with night time temps.
How are you monitoring those temps, digital probe, stick on gauge, or temp gun?
What brand of uvb does he have, arcadia, zoomed/reptisun, zilla, all living things or exo terra?
Is it a tube light, compact/coil bulb or a MVB?
If tube light is it a t8 or a t5?
If tube light is it a 5.0, 10.0, 12% or 14%?
If tube light how big is it, 22", 34", etc.
Is there anything blocking the UVB other than screen?
How many watts is the
uvb bulb?
How old is he?
How much does he weigh in grams?
how big is he head to tail?
How many bugs does he get a feeding?
How many feedings does he get a day?
How many times a week do you dust with calcium?
How many times a week do you dust with Multivitmins?