Greetings, Yorel! Thanks for returning to the Disney Parks Moms Panel with your question. I am so happy that you are considering visiting the Disneyland Resort!
Park hopper tickets are definitely the way to go as Disneyland Park and Disney California Adventure Park are mere footsteps from each other! My family hops back and forth nearly every day when we visit.
Since it sounds like your plans could change, I would wait to purchase your Disneyland Resort theme park tickets as they are nonrefundable. Once your plans solidify, you can purchase tickets
online, through the
Disneyland app, or at a ticket booth at the parks. Also, you should know that you have 13 days after the first use to use your multi-day tickets. So even if you can't visit the parks for two consecutive days during your trip, you could visit any two days within that thirteen-day window if that makes your planning any easier.
I certainly hope your plans allow you to visit the Happiest Place on Earth soon!
-Linda M.