 [ Symptoms ] does your chances of pregancy increase while on your period with birth control  i recently switched to taking my birth control continuously so i only have 4 periods a year i was supposed to have my first period this week but did not have it at all which could be my body trying to get used to the routine but if i have intercourse during that time could my chances of getting pregnant increase [ Disease ] you must be doing something right i see nothing wrong with your very conscientious program of oral hygiene