I have a lot of black basics which have got me through since late May and will carry on getting me through til December and beyond ...much of it nabbed in the Blooming Marvellous closing down sale
Long black skirt. Can be worn with long black dress and pre-pg blouse/jacket unbuttoned over it for work.
Black sleeveless maxi dress (which can be worn with long sleeved t shirts underneath - they don't have to be maternity ones)
Black short-sleeved wrap dress, always smart for work, can be worn over jeans too
Black long sleeved dress, can be jazzed up with jewellery and heels for evenings or worn with denim jacket and flat boots for casual look, does brilliantly for work with different cardies/jewellery
2 pairs jeans, 1 navy, 1 lighter denim
Black leggings, grey leggings, black tights
Black yoga pants, sports bra top and grey hoodie for exercise.
Tankini for swimming
Black and white long vests/secret support camis, worn as outerwear as well as underwear so I buy them in packs of 3
Black knee length boots, brown knee length boots.
With these I wear bright cardigans - usually waterfall style ones (either wool or cotton) - I have them in pink, royal blue,grey, green, red, brown, black and cream - luckily I was into waterfall cardigans before I got pg so I just added a few more. And lots of big necklaces.
At weekends I pinch DH's checked shirts and wear them with jeans and leggings.
I also got a few bright/patterned cheap and cheerful floaty Empire-line tops/dresses from places like H&M and peacocks which I wear over leggings and jeans with boots just to break up the monotony.
Coat is a lovely JoJo maman one - twenty quid from ebay.
It looks like loads but as a capsule wardrobe it has got me through late spring, summer, autumn and will take me into winter and am pleased with how it has all worked.
Enjoy your pregnancy!