It's actually the season 11 premiere of Frasier where Daphne gets pregnant is 'No Sex Please, We're Skittish' (Season 11, Episode 1).
The first time they mentioned them trying to get pregnant was the first episode of season 11, called "No Sex Please, We're Skittish"
7.10 "Back Talk"
The 11th episode
I already have
"Mixed Doubles."
The episode is called "Mixed Doubles" and it's Episode 6 from Season 4 for "Frasier."
= The episode's called "Give Him The Chair!" =
there are about 50 episodes that, that happens you have to explain more
Season 7, Episode 10: Back TalkOriginal Air Date-9 December 1999The episode when he was medicated and Daphne was giving him a massage.
"Mixed Doubles."
The episode is called "Mixed Doubles" and it's Episode 6 from Season 4 for "Frasier."
Are you sure it was Niles, or do you mean Martin when she was sick with the flu? If it is that one, than it is "Four For the Seesaw."
= The episode's called "Give Him The Chair!" =
there are about 50 episodes that, that happens you have to explain more
Season 7, Episode 10: Back TalkOriginal Air Date-9 December 1999The episode when he was medicated and Daphne was giving him a massage.
Episode 2.23 - The Innkeepers
he tells daphne in the last episode in season 7
Season 11 Episode 22
Season 1, episode 22 : Author, Author
Niles was first married to Maris, then later towards the end of the series he married Daphne Moon.
season 5, episode 15: Room Service