Why do I only get one daily quest?

I started playing Hearthstone and finished the tutorial and my first daily quests yesterday. As far as I understand I should get three new daily quests each day.

I only got one daily quest this morning. Did I misunderstand this and do I only get one daily quest? Or do I have to do something specific to get the other ones?

Solution 1:

You gain only one daily quest, but you can have up to 3 quests at the same time (source). Note that you can abandon up to 1 quest a day and receive immediately another random one in its place.

Solution 2:

You only get one daily quest per day, but I think you can have up to 3 quests (accumulated over a number of days) total.

Happy questing! ;)