So scared and feeling alone

I had a surprise pregnancy almost 3 months ago now, but sadly at 6 weeks we have a miscarriage. I didnt know i even wanted a baby until i lost it and now my husband is super keen to try again. This is our second month at trying and im so scared we're not going to fall pregnant again or that i won't make it pass 6 weeks. I cant help but wonder if I've left it to late to try for a baby as I've only just hit 30. All these what ifs are driving me crazy and taking an emotional toll on me. Does it get easier?