I am 41 and have a 9yr old and a 14 yr old

I am 41 and have a 9yr old and a 14 yr old. I am remarried now and we have been trying for a baby together for the last 11 months. I had a miscarriage in April and another in July. I have just found out that I am pregnant again. Very anxious and just praying that this one will be born healthy.