I mean, I don't like the idea of baby showers, but I am old, and I know they are more of a modern thing (if you are in the UK).
But I am puzzled by what you have written in your OP.
For instance, one friend of dh only wants to come to our house to chill and whenever be comes be turns up empty handed whilst staying over for a night or so.
What has he got to do with this ?
Aren't baby showers meant to be for the Mum's friends and family ? Arent' they usually women only ?
Why would you invite your dh's mate ?
Another one told me to that she would be give some of her son's clothes when for my baby and arranged a date, but nothing so far after she cancelled our meeting.
So, something came up that meant she had to cancel seeing you once. Why do you think she would be rushing round separately with a bag of clothes? The baby isn't even here yet ? I am completely
as to what the issue is here.
The rest don't even get in touch to check on us or did anything to help.
The rest of whom ?
Help with what?
What 'help' do you need during your pregnancy?
What are you expecting that your friends / family aren't doing ? 
My family hasn't offered to cover any expenses or buy any stuff for me or the baby.
Again, what expenses ? Why do you think other people should 'cover expenses'?
People generally turn up with a gift for the baby (and / or you) after the baby has safely arrived and they come to meet the new arrival.
I'm not sure what you are expecting in pregnancy ?
I know I'm not entitled to get anything but still something small would have been nice. So far, me and DH have bought everything with no help.
It is nice - if they are in a position to do so - if excited Grandparents to be say they will put some money towards a pram or something, but obviously not everyone is able to. But who else are you expecting to contribute to your living costs ?
So when I think of about the baby shower now, it looks like I'm going to end up planning and spending my money on it so what's the point?
Well, the cynical amongst us would say 'the point' of a baby shower is that people feel obliged to "shower" you with presents. So on a purely transactional basis that is the point. I do know that some people like the idea of having a 'get together' with family and friends before the baby arrives, well, because they like spending time with those friends and family members - so that would be the point.