Time jumps are fine when nothing story-worthy is happening. Occasionally using a phrase like "one week later" to signal that a jump has happened is also fine, although there are other alternatives as well.
One technique is to refer in advance to a Big Important Event which will be happening on a specific day. Then you can show the skip by saying:
The day of Big Important Event dawned rainy.
- or -
While Marisa dressed for Big Important Event, she...
- or -
Flat tires always happen at the worst times. Jason couldn't afford to be late for Big Important Event.
Or you can summarize a Boring Long-Duration Activity:
After ten dusty days in the jolting carriage, the sisters finally reached London.
- or -
Gavin had spent all week sorting through the contents of Grandma's attic. He surveyed his results with satisfaction: a small pile of family keepsakes, a dozen boxes to be dropped off at the church, and a mountain of garbage.
- or -
For four months Caryn had gazed out her window at naked branches drooping under the weight of snow. Now they stood tall, dusted with tiny green buds.