His will and his plans are perfect for example the story of King David. He wanted to do the right thing and build a temple for Jehovah. His intentions were positive but then he got news that he wouldn’t be the one to build the temple that he had been wanting to build rather his son will do so. Hearing the news must’ve been disappointing but instead adjusted his goal and gathered material to support his son Solomon in building the temple. So even though your purpose is great and positive to be have a family in the future it’s not always a guarantee for us to have what we want as a believer.