forgot W2
So, this is my very first time filing my Taxes, and the only W2 I received was from current job now and I only filed that one but I had quit and previous job and they haven't sent over a W2? I contacted them by email and still haven't heard anything from them is it fine if the IRS accepts the W2 I already filed and doesn't reject it should I still add the missing W2? or leave it alone or call the IRS about it as well? will I get in trouble?..