Hello @Jamreed
It depends on how you want to approach this, but you can either pause for a duration or pause until a date. If you know or can calculate the date that you need to have the workflow continue, pause until date is the better approach. However, if you want to pause for 13 weeks from the time the action is executed (and don't want to calculate the date) then pause for duration would suffice.
In either case, the pause will not start until the action is executed within the workflow, not as soon as it is started. Meaning that any actions before the pause will execute as normal.
Here are links to the actions in case you want to see more about them:
Pause for duration
Pause until date
Thanks