Ankle and knee injuries have restricted the midfielder to a solitary Capital One Cup run-out since the summer, but he was recalled to the starting line-up for the visit of the Swans.
The middle-man was one of a number of Saints players to put in excellent performances but Saints were denied a deserved win as Nathan Dyer cancelled out Morgan Schneiderlin's opener.
Cork told Saints Player
: "I'm happy with how I played, but it's disappointing because the lads have done great and it's so unfortunate that we haven't got the three points.
"I thought I was only going to get an hour or 70 minutes but the manager asked me how I felt at half time and I was fine. I feel really good.
"But it's hard when you think you're going to win, do well and that (dropping points) happens.
"With the position we're in, we desperately need [points] at the moment but if we keep playing like that then I'm sure they'll come along eventually."
Nigel Adkins' men prepared for this afternoon's fixture by spending two days away from the Club's Staplewood training ground, and Cork felt that approach helped the side put in a good-quality performance.
"It's something the lads weren't really used to, and it did feel like an away trip so we had a bit of team bonding," said Jack.
"It was good to get our heads down, concentrate on the game and focus on what needed to be done today. It must have worked because we came so close to getting the points."
Today's point meant Saints leapfrogged Queens Park Rangers to climb off bottom spot in the top-flight standings, with next week's game at Loftus Road now representing a massive opportunity to further move away from the foot of the table.
But Cork says he has not had a chance to analyse his side's upcoming fixtures because he has been solely concentrating on getting back into contention after his injuries.
"Because I haven't really been involved, I've just been looking forward to getting in," he admitted.
"For me to just play today was great, so hopefully now I can start looking at the games we've got coming up.
"The lads know they've done reasonably well [today] and we've got a massive game at QPR next week so hopefully we can go there and get some points."