sounds like you've started on the right foot to a healthy relationship.
don't listen to your friends, they're obviously not used to having sound, healthy relationships with great communication and understanding.
My fiance and I have been together for 5 years and rarely ever argue. If we do, it's over within minutes. We just don't sweat the petty things nor hold grudges, and are quite capable of automatically forgiving and forgetting.
We knew we were right for each other within 3 months, but don't go gauging your relationship, especially in months, on other people's relationships.
Do what's right for you.