He wants me to have dinner with his family,but I'm a bit shy about the whole thing?

We've only just got into a relationship and he wants me to have dinner with his family..I get really shy around people I don't know and I've only really met them once..They seem really nice but when I'm around them I'm different,I feel uncomfortable and get so shy.I'm also worried about what they are going to ask me..I don't have a job at the moment as I have health issues..and they don't know that..

It would be rude if I didn't go though..

Just not sure what to do or say!
He wants me to have dinner with his family,but I'm a bit shy about the whole thing?
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