Hello, and I hope I can help you today.
"Stress" itself cannot be quantified, and lack of sleep certainly can make you irritable and short-tempered. Your emotions have no negative effect on the baby, however, I am concerned about your own health and the environment in your home, as your fighting with your husband and chronic lack of sleep is not the best environment for a newborn baby. It is difficult to not have your husband around a lot to support you. I really hope that there is no physical violence that takes place as this is a major risk factor for things getting very dangerous, especially once the baby is born.
There is also a possibility you could be suffering from
depression, which is a chemical imbalance brought on by stress and the hormones of
pregnancy. There are medications that can be used safely during pregnancy and I strongly suggest you discuss your situation with your healthcare provider. There are even medications you can safely take to help you sleep.
In the meantime, at least you do not have to worry about the effect this has on the baby, but the environment in your home and your mood concerns me for the time after the baby is born. Talking to your doctor, a counselor, or social worker about your home environment may be helpful if your marriage is suffering because of all this.
I hope this advice was helpful and i sincerely wish you the best for the rest of the pregnancy.
Sincerely, Dr. Brown