You can see your exact numbers regarding your advertisement in your dashboard. After you have sent your advertisement in time for the next newsletter, you will see all the interactions - you can find them under the heading "Advertisements":
If you've placed your advertisement on time, you should have received your email confirming that your advertisement was featured in the weekly newsletter.
However, it may take a few hours for the status to change in your statistics. Since the newsletter is sent out individually to the stores of the respective target groups only after 10 am every Tuesday, it may take a while until your advertisement is included.
The most important thing for you is that you have received a confirmation email. You are welcome to check during the day if the status has changed from "Newsletter sent" to "Yes".