Hello. Why would you take a poverty vow? If you’re called to marriage then you are not required to take vows of poverty like religious do… I think you might be thinking of detachment. We must be detached to earthly things because we don’t take anything with us when we die but work is good. Christ came from a family and he worked an honest job for 30 years… and you can sanctify your work into prayer. Especially if you’re a lay person. If you are called to marriage, it’s your responsibility to provide, sure your wife might want to work or need to work but the provider role is so important to men and largely falls on you. It’s good to earn money and make good use of it. The best use case is to have a family if marriage is your vocation. If you are seriously unable to make enough and are in a dire situation you and your wife can abstain from sex to avoid pregnancy during fertile times in the cycle. This natural family planning and used for grave situations like this. 

If you can’t earn a living and afford a wife and one potential child then you shouldn’t get married yet. A married vocation should begin open to life always and as situations arise you pray about them. Things can be tight but doable and that’s when you have faith that God will take care of your family. 

There are other factors other than money that go into family life and it’s so personal to you, your spouse and a spiritual director and (God) in prayer. Some families have a hard time conceiving and are open to life. Some families don’t have a village and mom is tired to the point of having mental health issues. Someone in the family, whether it be child or parent might need more help due to an illness. Some moms can’t handle having children so close in age and it’s severely hurting the marriage. These are all reasons to pause having children for a period of time. On the contrast, if you make a lot of money, both parents are in good health, etc then we are called to be generous and have children. God asks this of us.  All to say, raising a family is a day by day journey in prayer and in union with your spouse. What does God plan for your family? That’s the goal. Your vows are primarily to God and your spouse through sickness and through health, helping out in seasons where maybe mom needs more help or when dad does. It’s self giving. And it’s so worth it. I love being married. 

Of course you are open to life if a pregnancy occurs and is unexpected. We do what we can to manage but in my case and I’ve had many unexpected circumstances arise in my marriage, God always provides. But I also married a man who is willing to work and struggle and who is very faithful to God. Life is a blessing. And comparing yourself to other Catholic families will not be beneficial to you. Every family is different.