Beware - if you've had 'more than 1 previous complication in pg', your travel insurance might be invalid.
Long version below for anyone affected by this.
Went away this weekend (Spain) at 8w pg and checked my Columbus annual travel insurance and the small print said I needed to notify them if pregnant.
Duly rang them, and they asked if I'd ever had 'complications in pregancy'. When I replied that I'd had 2 mc, he said that my cover was invalid for anything related to complications in pg as I'd had more than 1 previous 'complication'.
So I rang NorwichUnion, and they covered me, but when I said I was pg, their question was 'do you have any pre-existing condidtions that we should know about?'. I felt ok saying 'no', but it might have still been a bit iffy....
watch out, and check the small print!