Three of us are going to have babies

I and my girlfriend have been together for three years. We met Lucy at a restaurant. There was too many people to have no available table. And the waiter asked us is that okay for Lucy shared the table with us. We said yes. I have no idea that was the moment we would have a threesome lifestyle. It was a great dinner with her. We became friends with her. One day, Lucy brought up to the idea of tinder threesome. We had one of the best sexual experience that night. And now, both of my girlfriend and Lucy are pregnant.