Second immunisation

Sam

My 3 month has his second jags tomorrow. I was told by a friend who's little one is 1year that when her little one got first and second jags she had one in each leg and one in each arm, but for my little ones first jags it was a liquid into the mouth and one jag in each leg. So I just want to know if its the same tomorrow or he gets it in both arms and both legs?