Nuvaring questions!

Okay I’ve had my ring for 2 months. And I like it a lot so far but I still have a few questions and wondering if any of you ladies could answer them

1. Has it made your boobs seem bigger/heavier?

2. Do you need a backup method the first week (7days) you put it back in after your period? Or was that just for the 1st month? Because this one confuses me a lot.

3. Should I use spermicide with the ring if my partner wants to cum in me?

And if y’all have any tips for using the ring that would help also! Thank you!