Two family weddings, have dress and need help finding a jacket please

[HelenofSparta]

My brother and my sis in law are getting married this summer. One is in Scotland, the other at the end of September soooo it could be quite cold sooo need jacket i think.
I have bought a dress (need to slim into) - it is LK Bennett Erianna
www.lkbennett.com/clothing/dresses/DRERIANNA416WOOLMIX
But the jacket to match looks a bit officey. Would therefore really like something (preferably navy and plain) that s a bit longer. Was thinking a Kate Middleton long cover all smart coat? Have big chest so cannot have anything short and boxy. Any ideas welcome :)

Have you tried it on? Does is suit you wonderfully? 'cause I've seen it a few times (online) and the cut looks all wrong to me...

It was the best navy dress I found - not many around for the large of chest!
Bit tight on hips at mo, but have8 weeks to go.....
Just been looking for jackets online. All short. Cannot find any long ones (apart from a mummy one in Jacques Vert)!

Have you looked in Pepperberry ?? Great for large of chest.

OK, great!

Well, I'm pretty certain this isn't what you're after at all, but just linking on the off chance - the colour would be amazing with navy, really it would.