I agree with Dr. Tamanna.
The benefits outweigh the risks.
And there are no clinical studies regarding the vaccine effects of Indian formulations.
Covisheild is similar to Astrazeneca. And studies in USA have suggested that pfizer and moderna formulations are best for
pregnant women.
You can read further on this.
Ultimately, whether to take or not, is a decision to be made in consultation with a pulmonologist as well as your gynaecologist.