Read your query, No this is not a sign of oral cancer
there is nothing to be worried so much be relaxed , dont take stress, as you have sore tongue and gums near wisdom tooth has white sore this can be due to glossitis, due to deficiency of vitamin supplements, and sore gums can be due to infection in wisdom tooth related to periodontal problem or pregnancy induced gingivitis
Consult your doctor for vitamin B and C supplements and take proper sleep for eight hours.
Take proper nutritious healthy diet , includes green leafy vegetables, avoid junk foods,
You can consult dentist
for visual examination and after pregnancy you can go for oral prophylaxis. Maintain proper oral hygiene
, Do warm saline gargle two - three times a day, Use regular mouthwash chlorhexidine
Hope this will help you.
If you have further query I will be happy to help.
Dr. Priyanka tiwari