Tooth decay depends on the condition of your teeth. If there is no tooth decay to the tooth nerve, it can be directly filled.

Suggestion: If there are no rotten teeth under the root, the root is intact, but it will hurt and can be kept. There's no need to pull it out. First of all, it should be treated first, and then the porcelain teeth should be made after the roots are treated. If it's rotten to the root, you can pull it out. If treated, it will take about 15 days. After treatment, you can prepare for pregnancy. If the tooth is extracted, you can prepare for pregnancy after 1 month. I suggest that you fill all the cavities in your teeth before pregnancy, and you can also wash your teeth to prevent gingivitis during pregnancy.