What if i went to basic training without physical training?

I am a fit 21 year old man and am familiar with exercise. However I have not been seriously excercising for a while and my muscles are not strong right now but I can run a good distance without being tired. My legs are kind of weak and give out though. I can do over 20 pushups and 45 situps but I would probly be sore afterwards. I am in a tight spot because i have no money and decided to leave witin two weeks of my MEPS visit for infantry at FT benning. I have not been training and I am wondering if I can survive basic training?