The Southampton loanee hit a dramatic equaliser against Leyton Orient on Wednesday to send the Shrimpers to their first ever Wembley final.
However the 21-year-old is due to return to St Mary's at the end of the month and is unsure if the club will extend his stay.
"I'm not sure if that's down to me. I'll have to wait and see. I want to play at Wembley." he told BBC Look East.
"To score in a semi-final like that is massive. I didn't know what to do when it went in." he added.
Manager Paul Sturrock has previously stated that he would be interested in extending the youngster's loan.