The Rogers Fertility Help

Hi everyone we are the Rogers and we want to add one more member to our amazing family. However, we been trying over a year naturally and it's been hard. We had one chemical pregnancy in November and nothing again since then. Also we have had a devastating lost of our 20 year daughter in 2020 in a fatal car accident. It was the most awful even of our lives. We miss her so much. We have a younger child that is 5 and we want to give her a sibling. I am 40 and my doc told me my best hope is a fertility specialist. We went to one and oh my the price tag for one try is so expensive up to 15,000 where we are. It would truely be a blessing if we can conceive one more child. Please help us make this happen. Thank u in advance.