Cluster feeding-normal or not?


My 14 weeks old baby still seems to be cluster feeding at night (aroundish 10 pm to 1-2 am). Is this normal or could there be an issue with my supply and she might not be getting enough in short time? During daytime everything seems to be ok but even then she can’t go much longer in between feeds (half hour to one hour max) if she is not napping. Could supplementing with formula at night help solve the issue or make matter even worse? I don’t know am just too confused..anyone else experienced similar situation-what did you do?