Err if I recall, you'd receive a conditional event (CE) and, if lucky (?) retake. You have to have a passing score by the end of the term, which is approaching... so option one is, assuming you do not pass, receive a CE & get to retest. Opt 2 is, again assuming you do not pass, receive a CE & go into a disenrollment investigation. Then there's opt 3...pass
May I inquire what section you are worried about?
Edit4: (warning take with a grain of salt) hm the disrenrollment is tricky. I've heard some det's kick folks out with ease (not much of a paper trail, not a trouble or space cadet) & I've heard other det's attempt to thoroughly remove someone no problem. If your nose is clean, you're a good cadet/attend AS Class/PT, good GPA, and usually strong with your PFA, I can't imagine your cadre wouldn't work with you for a make up PFA. Also if there is something going on (personal, home, fam, relationship, etc) talk to cadre as they are your biggest advocate, albeit simultaneously your biggest adversary (only to make you better)...
Edit:
Push ups is a lot of muscle memory so just get on the motion of doing them daily. If you have time, follow the program on
http://hundredpushups.com/
Sit ups- try
http://www.twohundredsitups.com/
But obviously practice the af standards.
Run- intervals. Reg track, sprint 800, walk 100. Sprint 800, walk 100. Sprint 400, walk 100 (repeat 4 more x), sprint 100, walk 50 (repeat x # of x). Then instead of waking the 100s/50s, change the walks to jogs. So you do sprints/jogs.
Edit 2: These 3 suggestions are assuming you've got some time, but will still help regardless... tailor to fit your needs
esp the running. Whatever works for you, but definitely intervals.
Edit 3: perhaps will or Ducor or pima or many of the knowledgeable folks can confirm & chime in.