Random indecision

I've wanted to have a child for about a year (even though I told people I didn't because we kept trying and failing) recently I miscarried after 6 weeks and we have been trying again for the last month. I think this month may be my month (but I always say that lol) but right now I don't know if I'm ready. It's strange because I was a few days ago for the last year and now I'm scared. I wasn't before I had my miscarriage. What should I do?