My hospital only do antenatal classes for first time parents, it just depends on the hospital but most offer something. NCT don't run any refresher classes nearby either which is a shame as we are new here and don't know anyone. As I'm going up to full time hours at work shortly I won't really have a chance to meet people so I'm a bit worried about being isolated when the baby gets here, but I expect I will meet people at baby groups etc. I'm also trying to find some antenatal yoga / fitness classes which might be another way to meet people locally, although not sure there are any in my (very small) town. NCT was great first time around, the content was ok and did help get me mentally prepared, nothing I hadn't already read about online though, but the group was invaluable as we all got on and kept each other sane in the early months. I saw all the mums once or twice a week to begin with and we still see them regularly now nearly 3 years on.
I have a really itchy bump too, boobs as well 
It's just everything stretching, bio oil seemed to make it worse but I'll try Aveeno. Bust I had it in my last pregnancy too but didn't get any stretch marks, so they don't necessarily go together! Don't think I'll be that lucky this time as the bump is expanding much faster.
On maternity jeans / trousers I am currently getting by wearing my normal clothes with a elastic band / hairband to extend the button and a bump band that pulls down over the top of my trousers to hide the gaping hole when I can't do them up properly! Maternity tights with empire line / loose dresses are also a good cheaper alternative to buying all new clothes.