Think I've given up

We we'rent trying for long but I dont know if I'm ready to be pregnant or to be a mom. Every month I indulge in sushi and soft cheeses and coffee but then I see a baby and I long to be a mother all over again. I really truly thought I would be pregnant by now. Maybe I feel like I missed my chance. Then again, even so we wont try to prevent anything and if i turn out pregnant at some point i will be happy. So confused and tired.