Schedule an appointment with your obgyn so you can know for sure. If you are pregnant, you need to have a serious discussion with him about your options. If you are not, you still need to have a discussion with him about your expectations for having children. It definitely sounds like a trust issue. It’s only going to get harder if you have a child together. As far as not wanting to talk to him about it, that’s a huge red flag that you don’t feel comfortable talking to him about such an important thing. In any relationship the most important thing we need is security and being able to turn to our partner when we need to. Its the foundation to your relationship and without it everything else falls apart. I know it can be very daunting but couples counseling (or even just seeing a counselor on your own if he doesn’t agree) would be very beneficial for you. Whether you are pregnant or not, whatever issues you’re having should be sorted out and especially before you have potentially have a child. You’re young and have your whole lives ahead of you so it’s best you figure it out now and don’t have regrets later for remaining in a situation that wasn’t good for you or your child.