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Endometriosis UK
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When is the first day of my cycle?

Hi, I am on the rigevidon pill which is 3 weeks on and 1 week off. I am just trying to work out when the first day of my cycle is to help improve my gym/exercise routine. Would it be the first day of my off week? The first day I start a new pack? Or the first day of my withdrawl bleed (which is usually half way through my off week) any info would be much appreciated. Thanks

2 Replies

I'm pretty sure it's the first day you don't take a pill :)


That sounds great thank you!


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