Meet the parents..for real

Oh my gosh so my boyfriends parents want to meet me and mum because we are going down to where they live on saturday
And not only meet, but go to the beach with and have lunch together
Whats the big deal I hear you ask?
Well, a language barrier
They...

dont speak english
We dont speak portuguese
And it is gunna be very awkward because for the first bit my boyfriend isnt gunna be with me, only for the lunch bit
So its gunna be me, my mum and his mum
Alone
Together
In silence
And I get panic attacks in nervous situations
Can anyone tell me how I could be more calmer or what I could do to make everything less awkward
Please help
Its urgent

Oh my gosh is right. You can always pick up a Portuguese/English dictionary and it might help a tiny bit. But why isn't your boyfriend going to be there? It would help a lot if he was there to translate. If you have any Portuguese speaking friends bring them. Otherwise I'm not exactly sure what else to say.
Good luck though!

oh yeah well he wont be there because he has a web design class to get to.