Welcome to the forums.
Given the fact you are very new to budgies, breeding shouldn't have been allowed at this stage since you are not at all ready for everything that it entails.
The decision to breed comes with a whole lot of responsibility and commitment, the lives of the breeding pair(s) and the chicks are depending on you and the response you give if/when faced with adversity.
Things like being able to tell if your breeding pair is in good health and top physical condition to go through breeding; when a hen is expecting an egg or if she is showing the first signs of being egg bound; when a chick is having developmental problems, not being fed or showing signs of dehydration;
when there is aggression, abandonment and neglect of the chicks and it's solely up to you to feed and raise the chicks. The ability to detect early on and solve these issues can truly make a difference on the outcome of your breeding journey.
Can you give more information on your current situation, how many budgies do you currently have? Do you have your breeding pair housed with other budgies? Is there more than one nesting site on the cage?
Since at this point in time it's already too late to prevent this breeding, the best thing you can do is to read the information found on the sticky threads located at the top of the page here at the Budgie Breeding section.
You can start with these ones:
Once the chicks reach weaning age (at about 3 and half weeks old), it's best to remove the mother budgie and place her on a difference cage away from her family, this is done for the chicks' safety because at this stage the mother can show signs of aggressiveness, this is especially true when she is already thinking of a potential new clutch.
Given the circumstances, having more clutches is really not in anyone's best interests, not yours and not your budgies.
After this first breeding venture is over, please remove all nesting sites from the cage (any dark hiding places) and follow the recommendations from this link: https://talkbudgies.com/budgie-breedi...want-eggs.html