Feeling guilty!

So my husband and I are having MAJOR anger and behavioral issues with my 5 year old. School has been such a headache and unfortunately the behavior seems to be getting worse; but weve used many resources as far as help through the school, and other outside resources with in home therapy and behavioral assistance and here i am feeling GUILTY for my husband and I ttc #2 ...i mean realistically it would be almost a year IF it we were to get pregnant immediately but i am just sitting here feel so guilty. I know it wont take away from dealing with the issues we have going on now but this is eating me alive. I feel so guilty at times i almost wonder if we should wait? Ahh i dont know