What happens when I don't meet the 'Service Remaining Requirement' by the end of AIT?

My previous unit (SWCS) re-classed me to a comms MOS where I've spent the last 7 months. I've just finished AIT and I have projections for my next assignment. I'm supposed to PCS in a few days, but I have not received physical orders. Do I need to extend my contract? I have approx. 30 months left and the SRR for my MOS is 36 months, but no-one has contacted me about extending so I don't know what's going on. Also, if I don't get orders before my PCS date, will that affect my assignment? My COC is being understandably difficult with answers so your input is greatly appreciated. Thank you