could be a UTI. pups dont always empty their bladder so hard to say at 10 weeks w any certainty, if only drips are coming out though thats a red flag that he might be uncomfortable even if he isn't whining. ive been dealing w them w my pup for months who is a female but males get them too. id call the vet to squeeze him in or get a urine sample bc if hes developing a UTI they can get worse very quick. good luck!