Chances are low but not zero, dont treat periods as a free pass. Sperm lives a few days and ovulation timing varies. If you are trying to avoid, just use proper protection, simple.
Yes there is a small chance, especially if you have a short cycle, because sperm can survive a few days and you might ovulate soon after periods end. My gynac said never assume periods means totally safe. If you want to avoid pregnancy, use protection.
It can happen, less likely but possible especially with irregular or short cycles. The body doesnt always follow the calendar. So if pregnancy isnt the goal, dont rely on timing alone, use protection to be safe.
I always thought periods time is 100 percent safe but turns out its not fully. Cycles vary a lot. So now I know better. Are others also told this by their doctors?