Getting teeth pulled is a traumatic procedure, and there is typically some swelling and inflammation at the site where the teeth are pulled out. Also, as the cavity left by the tooth fills in, there may be a residual bump as the tissue matures and heals. Generally speaking, what you are describing therefore sounds like normal changes that you would see after tooth extractions.
However, I would definitely recommend that you follow up with your dentist
about this issue. Most likely they have already given you a follow up appointment date, and you should keep that appointment. If not, I recommend that you schedule an appointment with your dentist now.
Your dentist will monitor the healing in your mouth after the tooth extractions. When they feel that the swelling has decreased and the healing progressed satisfactorily, they will begin the process of fitting you for dentures
. It is important not to rush this process, both so that you can have good fitting dentures and also to make sure that the gum tissue that the dentures will sit on is ready for the added stress of having the dentures rubbing on it.
Again, please discuss with your dentist!