Even with the Yankees’ multitude of injuries to key players this season, Andy Pettitte firmly believes the Bombers would be higher in the standings if he had pitched better over the past two months.

Pettitte admittedly still wasn’t in peak form on Saturday, but he gutted through 6.2 innings as the streaking Yankees leapfrogged Baltimore into second place in the AL East with their season-high sixth straight win, 5-4, at the Stadium.

“I’m not ecstatic right now, but I’m just glad we were able to get a win and keep going on this streak we’ve been on,” Pettitte said. “Again, I give up runs early, and the guys fought back and were able to take the lead and hold on.”

Eduardo Nunez — starting at shortstop in his first appearance since May 5 due to an oblique injury — was recalled after playing just four minor-league rehab games and went 2-for-3 with two RBI, including the tiebreaking single in the sixth inning.

“He brings another element of that speed and he has the ability to swing the bat well and play defense,” Joe Girardi said of Nunez, who was activated after pitcher David Phelps went on the disabled list with a forearm strain. “I know (Nunez) didn’t have a lot of reps, but we had someone go down and we called him up.”

Pettitte, who tied Bob Gibson for 44th on the all-time win list with 251, allowed four runs (three earned) on nine hits to even his record at 6-6. He hadn’t won since June 8 in Seattle, and said Friday, “I know we’re not in first place right now, but we’re hanging in there. Heck, I point to me. I’ve been terrible and if I was better, we’d have more wins right now.”

Since opening the season with three straight wins, he is just 3-6 with a 5.12 ERA over his past 13 outings — sandwiched around a brief DL stint in May with a strained muscle in his upper back.