Messed up big time in sprout stage, need help.

Hi, I'm a newbie and I think I messed up big time in sprout stage, I was going to use hydroponic system with coco+perlite. I put my seeds to jiffy and ordered all the equipment from internet. But cargo is delayed and my equipments seems to arrive late. 4 seed is popped up and start sprouting they are around 15cm mark right, its been a 5 day in jiffy now and my cargo(almost everything I need to transplant) will arrive around 5 days minimum.

I'm afraid of my seeds will die in jiffy, what should I do? Should I put the jiffy pellets to the sunlight? Should I go and buy emergency coco+perlite and transplant them in smaller container until my cargo arrives? Or should I do something else? I'm freaking out right now and don't know what is the best thing to do. Every suggestion is would be big help, thanks.

I would transplant into cups. I assume the jiffy pots has roots shooting every direction. If so, transplant now. They will be absolutely fine in the cups for the next 5 days. You could still use the coco.