Questions: Family & Friends

My fiancés dog got hit by a truck 3 weeks after finding out we are expecting a baby. She had her back leg amputated and metal plates put in her pelvis, as it was broken in 3 spots. We were told to kennel rehab her for 8 weeks while she healed, which we did. She was a full assist for toileting and exercise through that time (having to hook her up to a cloth device and hold her up to go to the bathroom- which fell off on me because he works full time away from home whereas I work from home). It took a lot out of me, considering I am pregnant and exhausted. I now have a pinched sciatic nerve and have since 12 weeks in to the pregnancy and it's incredibly painful.

Fast forward the 8 weeks, she's out of kennel rehab and has developed an insane amount of behaviors. The vet swears that the truck didn't cause a brain injury but I don't buy that at all. To get the testing done it would cost us another $1k that we don't have (her surgeries cost almost $3k as is). She now lunges at the side of her cage snarling at everyone except my fiancé, refuses to get out of her cage unless you ultimately force her, has developed food and cage aggression, won't touch food at all unless it's nothing but an expensive brand of wet food that we had to get her during her healing process (will literally not eat to a point of being lethargic), has nipped at several peoples faces for doing something mundane- like hugging me or my husband goodbye when they leave the home, whines literally nonstop, barks nonstop, growls constantly, etc etc. The vets swear she's not in pain and this is all behavioral.

I'm due in 8 weeks and this dog and her behaviors are making me weary of even bringing the baby in to this house. I don't trust the dog and behavioral training isn't doing a wink of good. She's gone after the trainer more times than I can count. So I told my fiancé the dog has to leave before the baby comes. He says I'm heartless because she's been through a traumatic event.