When I learned I was having twins, I knew I was in for a physically difficult pregnancy.
In some ways, I got off easy: I had morning sickness, but it was mild enough that I only vomited once. My legs and feet swelled, but never enough to keep me from wearing my usual shoes.
However, I am a short person with a short torso which did not really have room for two babies plus their respective intrauterine accessories. By 20 weeks, I was pregnant and pathetic enough to persuade an airline clerk to bend company policy and offer me a free hotel room when my plane was delayed.