Thanks for the replies guys,
Ya I was mostly worried because the six weeks was too young and now he is already 18 weeks so he should be done now anyways.
When we called our vet a while back she seemed to think Oskar would not need another set. So it sounds like different vets have different opinions.
I just wish we would have noticed the vaccines were on a weird schedule earlier so that we could have got them back on track but he's already out of the normal ages so I am not sure what to do now.
I think at this point I might just leave his vaccines as if until he goes in for boosters next year, would you guys say that is too risky?