Okay for missionary now?

Towards the end of October, me and my boyfriend tried penetration for the first time. To make it less painful on me, we were in a doggy style position, which really helped cuz I didn't feel as much pain, mostly just pressure. I feel like it worked to stretch me out because now, he can stick two fingers in me with ease, before penetration he could barely fit a finger in. So now, from what I told you above, you think that if we do missionary now that I won't feel pain??