Should I try to have a baby?

I'm 25 and have been married for a little over a year now, but have been with my other half for 7 years now. He is really anxious to have a baby..to the point where he talks about it ALL the time. I want to start trying but I'm scared of the whole process at the same time. Also my good friend is getting married in June and she ask for me not to be pregnant at her wedding and I respect that, but it's hard when my husband doesn't and is always pushing the topic. What should I do???