My ds is 2.11 and does this a bit. Luckily he does say please & thank you, but he will sit on the sofa & shout "more octonauts!" Or "more raisins" As soon as it finished, right up until you go & press play, even if I ignore him for like 5 minutes!
He does hitting, pinching & scratching. Mainly to me, sometimes to dh & never to anyone else. Mostly when he's tired. We're getting somewhere with the naughty spot & telling him it's not nice. It's a relatively new thing & we've been very consistent in dealing with it at home. (On holiday he got a bit nasty, but that's a whole different thread!)
This morning, literally on the way out of the house, late, he decided he didn't want shorts, but trousers & stropped until I changed him!
So, yes my ds, who's generally an angel, is being a pain in the bum too.
I think us mums (or main carers) get the worst of it cos they're more secure in acting out with us, as little consolation as that may be. I know you're tired, but I think you need to get a simple strategy to deal with it every time she lashes out, time out in her room for example, may be the only way to see a change. I'd probably pick that first & deal with the verbal stuff later, maybe when your pregnancy tiredness & sickness has worn if a bit! Like not listening until she says it nicely.