Am I going to have a problem or have to pay since I am filing late?

Probably not.  Do you have a refund?  If you owe and pay after April 15 you might get a bill for some interest.  You can efile Oct 15.

I can efile now though right?...

Do you know the bracket for the eic... When you have 2 child ren

As in sallery?

You can e-file any time up until October 15.  EIC works on a sliding scale, the best way to determine if you get it and how much is to complete your tax return.  

At this point, if you owe tax, expect to get a bill for 5% of the amount you owe as an extra penalty for filing late.  It will go up to 10% if you file after May 15.  If you are expecting a refund there is no penalty for filing late.