6 february period. 12 march started to take clomid (clomiphene) tablets. 15 march had sex. is it possible i got pregnant then ?

Not sure of timing: Usually we start Clomid (clomiphene) during your period, day 3, 4, or 5 of bleeding, and you take it for 5 days in a row. It encourages ovulation to occur near day 14. Your period started in february? But you started Clomid (clomiphene) in march? It doesn't make sense to me, but if you possibly had a spontaneous ovulation while on clomid, (clomiphene) then it's possible you could have conceived, but that's very unlikely.