Good day! Please advise if a dry cough and throat irritation don't pas…

Good day! Please advise if a dry cough and throat irritation don't pass from May 21st. Usually, throat irritation and coughing appear in the evening when I go to bed and remains until morning, until I eat and gargle. In general, the condition is excellent, there are no other signs. Gargling and inhalations do not help very much. I am currently 20 weeks pregnant, maybe a side effect of pregnancy.