welcome to yt!! I am so so very sorry for your miscarraige.
Is there a reason your picking him up so young?? most babies should stay until at least 12 weeks as they learn a ton from their mommas up until that point. he is really young so I would be prepared with nutracal...incase there are low blood sugar issues which are very common in that age range.
I would insist he only receives one vacc and take him back to your vet in 1 month for his next vacc...I find my react a lot better with each one spaced out. I would also make sure you have a vet appointment lined up to be sure he is ok and everything is good with his health.
I am not trying to scare you just want you to be fully prepared.. just in case.
