Unless you were admitted to the hospital most would have returned home. A doctor can advise that it would be best not to travel but they also would have recommended she not travel to Canada in the first place. Unless she had a premature birth or was put in strict bed rest because she was bleeding or dilating and 100% couldn’t travel it will be considered birth tourism. Did you return to India without her if she had a medical reason why she needed to remain in Canada? People can’t just decide to leave their job for 3-6 months all of a sudden. Did she travel in her 3rd trimester of pregnancy? A visa is a privilege you will have to see if you are approved. VO are not stupid. Most would never have thought to go to an OB while in Canada and obtain a letter stating that your wife was not advised to travel. Do you have proof/receipts from weekly monitoring that would be required if she did have a serious pregnancy complication.