Help me get my son off the bottle..🙃

My son is 14 months old and still uses a bottle. He only gets almond milk in his bottle, not water or juice. If he has juice or water he uses a sippy cup. He won't sleep without his bottle and gets really upset when I offer him a sippy cup instead of his bottle. I'm also 27 weeks pregnant and have a 5 year old so I'm pretty exhausted and that's why I've been holding off on taking his bottle away..I know it will be hard. Does anyone have any tips? It's been so long since I took my daughter's bottle away I don't remember how I did it.