WOW, you have been living with this guy for all of three months, he obviously does not want any (more) children, I suppose that has probably come up in conversation at some point, now you are pregnant (accident or deliberate?) and you are surprised that he is not over the moon?
Also my husband was looking forward to our baby, and did not attend any scans until I was five or six months pregnant.
Quite honestly, I would not have either...
Not very exciting to see a funny shaped blob move around on a fuzzy screen.
That is part one!
Part two: You are bleeding, and he does not seem to care?
That would worry me way more than his obvious missing enthusiasm regarding the pregnancy.
And if he does not care about you that much, why would you want to stay with him?
If you want the baby, don't let anybody tell you otherwise.
But the baby will be better off with a loving mother than a set of uncaring parents.