Is immediately too soon to try again?

Al

I miscarried on July 19 at 6 weeks. My doctor told me to wait until my next natural period to start trying again. Is there a reason why she told us to wait? My husband and I are ready to jump right back in and try but he is hesitant because it’s “against doctors orders.” I haven’t been able to find any information that says there is a medical reason to wait. In fact I’m seeing lots of people who have been successful getting pregnant immediately after a miscarriage, including in this group, and it’s giving me some hope lol I’m interested if anyone knows why it could be better to wait?