You really need to ask a lactation consultant.
1) your baby will not take a bottle. for now. or at all.
2) your baby is not peeing as much, and sweats a lot... hence, dehydration. Be very careful of that.
3) you are producing less milk.. hence, he is not getting sufficient intake.
4) you can still breastfeed while pregnant... but again, the body gets affected and milk production, may decrease. Every woman being different.
5) regardless, the NOW is crucial. What is happening NOW. Because, if a baby does not get sufficient daily intake 24/7, they can get dehydrated and their intake levels will not be sufficient for caloric intake etc.
So, call your Pediatrician...
Dehydration in a baby is dangerous.... look it up online for dehydration symptoms, too.
You cannot go on, nor he, with insufficient feedings for your baby.
Water or juice, will NOT replace breastmilk or Formula. It is not nutritionally the same. But, if he is dehydrated... you need to take him to the doctor or ER.
To me, you cannot keep trying to increase intake indefinitely... because he will not be getting enough intake, daily. And you don't know, when or if your milk will return to sufficient levels, for him.
Have your Husband try and give him the bottle.
Buy lots of different bottles/nipples and keep trying.
He needs intake.
Or you will need to supplement with Formula.
Next, as breastfeeding continues, the breasts are not always hard anymore with milk.. the breasts do adjust.. .and may "seem" empty, but it may not be.
Does your baby seem "satisfied" after feedings? Or is he still hungry?
that is an indication as well.
Can you SEE and HEAR him swallowing as he nurses? That is an indication as well, that he is drinking....
Do you produce milk when you pump?
all the best,
Susan