Skipping period with birth control?

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So, I want to be on my school's swim team this year, however I only use pads when on my period, as I find tampons are quite uncomfortable. Do any of y'all have experience with skipping your periods by bypassing the week of "sugar pills" in your birth control? If you do, how well does it typically work, and do I run much risk of spotting during the week that my period would ordinarily be one?

Also, once you go back to using the sugar pills, do you find your periods are heavier than normal (since you skipped them in the past month or longer)?