Midfielder Paul Anderson believes the next four games will dictate whether the Blues will be in the running for a play-off place come May.
Town travel to eighth-placed Brighton on Saturday before Derby and Nottingham Forest - who are both currently in the play-off zone and who meet in an East Midlands derby at the weekend - visit Portman Road, then April starts with a trip to Blackburn, who are 10th just behind the Blues in ninth.
"We have got some massive games coming up, starting with Brighton,” Anderson told the club site.
"Leicester and Burnley look like they have gone but the other places are up for grabs and we are still in there.
"Our next four games are against teams in the play-offs or around them and you’d think they are likely to dictate whether we are in with a chance of finishing in the top six or not.
"Hopefully we will be right in there but whatever happens, it’s still a massive progression for the club from the last four or five years.”
Brighton are expecting a 30,000 crowd at the Amex Stadium on Saturday with almost 1,800 fans following the Blues.
Meanwhile, Town’s U18s are in action away against Bristol City on Thursday afternoon (KO 1pm). The Robins play their academy games at SGS College in New Road, Stoke Gifford.