Have you any idea of what it is like to face your future knowing that you will always exist in poverty so dire that you must often budget for toilet paper? Let me tell you how it is to be a 56 year old woman living with kidney failure and knowing that all the best years of your life was given to a man and the children I bore him and raised for him while he worked. I never foresaw divorce happening to me. Never thought about the fact that I was not getting credit for the retirement he was earning for himself while I stayed home to raise the kids and put a hot meal on the table each and every night. Yet, seventeen years of marriage, years of being the good wife and mother, hard work and giving up my needs for the needs of my family, to end up in a poverty so stark that most people would have given up and... well you get the picture. I exist monthly on less than most people make per week from SSI. Now that my husband is retired I find out that he had a special retirement that wasn't part of Social Security and that I am not entitled to any of it. Do you think this is fair? You just have no idea!
Of course it's not fair, my point is that the problem isn't solved by subsidizing motherhood independent of marriage. Your problem is that marriage (as a LEGAL institution) was practically destroyed when divorce laws were liberalized. Your husband should never have been able to get out of his legal obligation to support you, and before the divorce laws were liberalized, he wouldn't have.
Some states have "community property" laws which, while not preventing divorce, ensure that the stay-at-home wife gets her share of the wealth earned by her husband while she was putting his meals on the table and enabling him to earn. That's an acceptable alternative if you're going to make divorce easy to get.
I'm very sorry you did not live in a place where the laws protected you; but either of the two alternatives I mention (eliminate unilateral divorce, declare both partners' earnings "community property") would be better than a law like the one proposed above, which would simply give a monetary incentive to become a mother independent of marriage.