If you have purchased directly via the Healthy Mummy Wellness website you need to login to your account and under your name select 'My Subscriptions'. Click on the subscription you would like to cancel and choose Change Subscription.  This will take you to a page where you can cancel, switch or pause your subscription.

If you have purchased your subscription directly on your phone via iTunes or Google Play please see below on how to cancel:

iTunes: 

https://support.apple.com/en-au/HT202039 

Google Play:

https://support.google.com/googleplay/answer/7018481?hl=en&co=GENIE.Platform%3DAndroid