Position?

Jessica • Im 29 with 2 boys- 6 & 12. My bf has 2 boys 4 & 5. We have been together almost 2yrs and want to try for a baby of our own to add to the family. I have endometrios, so it has been hard.
When I filled out my daily log, it asked if I was on top or him. When TTC, does that make a difference? I never really thought about it.