Hello, Sorry to know you are feeling this way. I hope you both have planned the baby and discussed the financial responsibilities that come with the baby, if not, please sit down and do it now (if you both cannot come to a consensus, seek couple counselling). If you are unable to afford house help or nanny, please convey that honestly to your wife. There should not be any assumed responsibility (that you have to earn and she has to take care of the child). If she is capable enough to earn and support the lifestyle, she can opt to work and you can be a full time dad at home, provided her earning is sufficient for you 3. If not so, you will have to continue working and she has to take care of the child at home. Since taking care of an infant is also a full time job and an all day long job, you can hire part time help, if even that seems difficult and unaffordable, please seek help from either of your parents. The work needs be balanced and you both need to discuss that with each other. If there are certain things you cannot afford, please explain it to her honestly. You are not doing any of it intentionally, hire help if you can afford I would suggest and she can also work but your wife also needs to be supporting.
Communicate honestly. Also, understand why your wife is feeling the need of a certain lifestyle (society also adds pressure, sometimes leading us to have unrealistic demands).
Next Steps
Couple counselling will really help. I am happy to help.
Health Tips
You can get over it but having an understanding between you two is very important and being honest with each other should help and communication.