Show earlier with twins?

Claudia • Mummy to William James 8th March 2015
Just wanted an opinion. I have lots of twins in my family (2 in every generation) and I am currently around 6 weeks pregnant. 
​I have had some really bad pregnancy symptoms since 4 weeks. 
​How early did people start showing with twins? And did you have worse pregnancy symptoms?
​My first scan isn't until the 28th July till I know for certain, but I just wanted to hear other peoples experiences. 
​Thank you