This tears my heart out. So many good couples out there want kids and cant have them for many reasons, and sick people like this can have kids. I wish we had to have a parenting license before having kids.
If you get accepted int to heaven is only determined by the acceptance or denial of Christ. Salvation cannot be lost due to a "slip up". The Bible says ( speaking of post salvation) "Chirst will never leave you nor forsake you".
Good for you....
I would suggest two things.
1. replace the counter tops in the kitchen, even if you just put down new laminate.
2. Put some cash into the land scape out front, the front of the house and the kitchen sells the house.
good luck