There is no predefined amount of time required for your skin to tighten after pregnancy. This is dependent on many factors such as genetics, the number of babies you’ve had, your pre-pregnancy weight, age, your skin’s health, and more. It will look different for every person.
Remember, it took nine months for your belly to stretch to accommodate that little watermelon, so you can expect that it will also take some time for it to tighten back up. Whatever you do to help the process along, be patient with yourself.
Give your body some grace. Thank it for the work it did in growing your baby. And allow it the time it needs to recover.