Bad teeth help.

I’ve struggled with bad teeth since I was little, neglected them when I was young and copped it as I was older although I brush and floss etc they are really bad. I’m currently pregnant with hyperemesis, 4th time, and with having this sickness during pregnancy it has done no good for my teeth. They are terrible, embarrassinginv and I hate smiling. I have health insurance but the cost of dental work is still not doable in large sums. I don’t have a concession card or healthcare card.
Just wondering if there is anything I can do to get quite a lot of dental work done as cheap as possible. I’ve had some fillings in my front teeth previously but seriously need veneers or something, my back teeth have just fallen apart and a lot are missing parts etc. I know this causes a lot of health issues also. Is there anyway I can get any help financially im sorting my teeth?
I do look after them but when you’ve been pregnant 4
Times in 6 years with hyperemesis plus the fact they were bad before that, it takes its toll.