Previous seasons had one episode per week. I expect the same for season 3. Edited to add: I see that we will get 2 episodes for the season premiere on February 14.
There have always been breaks in seasons because networks have to air 22 episodes between October and May so they can't air a new episode every week. Although I think there used to be more shorter breaks where you'd have one or two weeks without a new episode. Now networks seem to prefer to have less but longer breaks in the season.
It got a full season order in October, making it 22 episodes for season 1. The broadcast season normally runs from October to May, although shows don't always stick to that as strictly as they used to in the past.
If you're not sure if you remembered your password correctly you could always open an incognito window for your browser and try to log in. Or try to log in using a different browser than you normally use (if you have more than one browser installed). Or try to log in on a different device than the one you normally use. That way you will know for sure if you remembered your password correctly without having to log out and potentially not being able to log in again.
I was just about to complain about the double username icons when the site went down for a minute. That seems to have fixed the problem. Everything looks good now.
I thought the woman that young Valya murdered was identified as Raquelle's daughter (and therefore Lila's grandmother) in the first episode. So she was a direct ancestor.
At first I thought he might have implanted Clark's heart into himself and his powers were starting to kick in, but then I realized that that's unlikely because Lex had been talking about building a power suit for himself which he wouldn't need if he was going to use Clark's heart to get powers. Although I think it would have been cool if it had been his plan to use Clark's heart to get super powers.