My mother has really hurt my feelings, should I speak to her about it?

I am currently planning my wedding and yesterday my fiance and I invited our mothers to view the venue we love. My mother complained all day and didn't smile once. This upsets me a bit because she hasn't shown much interest in our wedding plans at all and she clearly didn't want to be there. This wasn't really the main reason she upset me though. We all went for lunch and I mentioned the fact I had been invited to a school reunion and jokingly said "most of them are doctors and lawyers now" and she replied "well you could've gone to university, you could have been something". I spent the last 6 years as a singer, singing in clubs, bars, holiday parks, weddings, jazz clubs - loads of different places and I am now in a top wedding band. My brother is a teacher and my sister is a nurse, so I feel like because I don't have a skilled profession she is totally disappointed in me. I just laughed when she said it but as the day went on and I realised we are never going to be able to afford the venue I had my heart set on it keeps going round my head. I feel absolutely devastated. Firstly because we cant afford the venue we had set our hearts on (they added on loads of hidden costs and wouldn't give us a single penny off) and secondly because my mum is clearly hugely disappointed by me and disinterested in our wedding day. Should I speak to her about it? She isn't a very reasonable person and I am worried it will just cause a huge argument.