The short answer is: highly unlikely, but not impossible. Ovulation is the release of an egg from your ovary, usually happening mid-cycle (around day 14 in a 28-day cycle). Your period, on the other hand, is the shedding of the uterine lining, signaling the start of a new cycle.
Technically, you can't ovulate *during* your period in the traditional sense. However, menstrual cycles vary. If you have a shorter cycle (say, 21 days) and a longer period (lasting 7 days), you *could* potentially ovulate very soon after your period ends. Sperm can survive for up to 5 days in the reproductive tract, so pregnancy is *possible* if you have unprotected sex towards the end of your period and then ovulate shortly thereafter.
Irregular bleeding can also sometimes be mistaken for a period. Spotting or breakthrough bleeding mid-cycle might be confused with menstruation, when you are actually ovulating.
Bottom line: While uncommon, the timing between menstruation and ovulation can overlap, making pregnancy a (slim) possibility. Tracking your cycle and understanding your body's unique rhythms is key for family planning or avoiding unwanted pregnancy. Always consult with a healthcare professional for personalized advice.