Having trouble sharing my calendar with another iPhone user.. help

Hello wendi159,

We'd be happy to provide you with some information on sharing an iCloud calendar. After creating a calendar, you can learn how to share it here: Share iCloud calendars on iPhone - Apple Support

You may find these steps helpful:

Share an iCloud calendar

You can choose to share a calendar with one or more people in iCloud. Those you invite receive an invitation to join the calendar.

1. Tap Calendars at the bottom of the screen.

2. Tap  next to the iCloud calendar you want to share.

3. Tap Add Person, then enter a name or email address, or tap  to browse your contacts.

Note: Your contacts must have an email address to share an iCloud calendar. See Add and use contact information on iPhone.

4. Tap Add.

Thanks.