seed germination

i have recently started to germinate my seeds like a day or two ago and i see that one seed shell has cracked but there is no tap root showing and the other seed has a tiny tiny tap root that is about a millimeter long what should i do for the seeds should i let them germinate longer or plant them

I'd germ longer, that's just me personally, I waited to plant mine until they had about an inch taproot, some even had starter leaves. Just make sure to keep the paper toil moist and in a warm place, but watch for mold!