I have an 8 week old puppy we have had him home for 4 days he bites sooooooo much i know this is normal puppyt?

i have an 8 week old puppy we have had him home for 4 days he bites sooooooo much i know this is normal puppy behaviour and rotate his 5 chew toys but he just wants to bite me my clothes my one and three year old!!!! i know know time he will stop this but my one year old is petrified of him and after a nip yesterday my three year old is becoming scared in there own home. i keep kin on leash when him and the kids are in the same room. but feel im either not there enough for him or the kids and dont want to leave him in his crate in the day when he is awake to much. as he is only 8 weeks should i re home him ??? i have had interest in him and not sure the kids can deal with the nips for one more day let alone weeks please help advice please....