How hard will it be for me to get pregnant at my age?

I am 36 years old and it took 10 months for my husband and I to get pregnant with my 9 month old daughter. There was nothing wrong with either of us but we ended up having Insemination done since it had been 10 months and we hadn't conceived yet. We got pregnant right away. We are talking about trying for our 2nd since I am 36 years old. I'm just wondering the odds we will have trouble again. I have VERY normal cycles. My period is every 27 days like clockwork. Any advise or anyones experiences would be helpful. Thank you.