Yes, yummy, it's still available! It's a size 2 in Seraphine sizes - it's a French company so their clothes come up slightly small. So it's probably more like a 10, if I'm honest.
That said, when pregnant I was the size of a woolly mammoth and it covered everything. Is this your first baby, yummy, or do you have any idea whether you're heading for a large or small bump? If you think small, this coat should fit you fine. If you think you'll be mahoosive, don't buy it from me! 
It's in great nick - apart from the missing button one of the threads on the lining has unravelled just a teeny bit, which doesn't make a difference to anything unless you're expecting military inspections. I haven't dry-cleaned it yet (sorry, too busy looking after baby!) but will do so. It cost me £95 so I'd say £50 plus p&p.
Don't know why I couldn't find the coat on the website earlier; it's here. Huge apols - tis 60% wool, 40% poly. Lovely and soft, and v cosy to wear.