Everything here runs on a floor you can't opt out of: consent, the ability to pause, and the ability to stop — for either partner, at any point, without owing a completion. Wetness, silence, or a body's response are never proof of readiness or consent; the words carry it, and the quality of the yes matters.
Pain or discomfort at first intercourse is common — in one Swedish youth-clinic sample of young women, about two thirds reported first-time pain — but common doesn't mean something to endure, and it doesn't by itself predict ongoing pain. The working default: if you can't tell how bad it is, treat it as pain — pause or step back. Sharp pain, a tearing feeling, or heavy bleeding are not a 'normal price' of a first time: stop, and get recurring or heavy bleeding evaluated rather than waiting it out.
This guide is written for first vaginal penetration. First anal penetration has its own, different preparation ladder — don't transfer this pace to it. And the ask-and-stop framework above assumes you both have room to say no out loud. If openly talking about sex, or pausing, feels near-impossible in your situation — for cultural, religious, or relationship reasons — going even slower matters more, and talking to a counselor or sex therapist is a reasonable first step, not an overreaction.