Torn with partner and baby

So we've had the initial scare and I have missed my period. 
My partner is fully aware of this and we are generally ok with it. 
We're going to test tonight or tomorrow whether it's a positive or negative! 
However, he's been having second thoughts, because we're saving for a mortgage and hopefully going to buy late this year (2016). 
We've worked out the month of birth will be before we move out of his parents house (which I just add, is overcrowded with 6 people and 4 pets in a 2 bedroom house) and he doesn't believe we should keep the baby because of these living conditions. Which I completely understand but I am just so stressed out... My mum has offered me to stay with her when baby is born for moral support and so I don't have to stay in that house with a new born. 
I don't feel I can talk to anyone about it in case they get upset that I'm even THINKING about a termination. I'm just so stuck, I really need help and advice! This is a horrible position to be in!
I'm actually starting to question myself  😥😩😭
God bless to those who can't have children