2022 State tax e-filed but still not accepted by the state

Hello, 

 

I e-filed my fed and state return last night (04/17/2022) and noticed that it may not be accepted till 04/19/2022 which is past the deadline.   I already received confirmation that fed was accepted but I still haven't received confirmation on my Illinois state return. 

 

1.  What happens if the state return is not accepted till 4/19? 

2.  Even though I e-filed on 04/17/2022, will it be considered late if I don't receive confirmation till the 19th? 

3.  If confirmation is not received till 19th, will I be penalized? 

 

Thank you, 

young11