Hey there, Nathalie! Welcome to planDisney. Thanks for stopping by with your question.
I just checked the
Theme Park Reservation Availability Calendar myself and I don’t see April 20 available for either park at this time. I have seen availability pop up last minute as Guests change plans, so I would recommend continuing to refresh frequently.
I do want to mention, once you use a portion of a
multi-day ticket, the remainder of the ticket must be used within 13 days. However, an unused multi-day ticket can still be used in the future (most multi-day tickets purchased in 2022 will not expire until January 12, 2024.) I strongly recommend getting in touch with
Ticket Services before your arrival, and before using your multi-day ticket on April 19, to see if they have any options for you. Otherwise, if you use one day of your ticket on April 19, you will need to use the second day of your ticket within 13 days of first use. You can
contact Ticket Services via phone or through the
Disneyland mobile app in the “Chat with Us” section. Given your trip is very close, you could call and use the chat at the same time to see where you can get a hold of a Cast Member first.
Wishing upon a star that this gets sorted out for you! The magic awaits.
Kamini