Wanting a baby at 38

Ti

I will be 38 in January and my husband will be 40 in June......my daughter is 17 and a senior in high school and my son will be 9 in January and my husband and I are going to try for # 3 soon! What in the world am I thinking about!!! What is wrong with us, wanting to start over. Is anyone else starting over??? 🤪🤔