Young women may have problems in delivery, and older ones might have quick and smooth time during delivery, or vice versa. Believe in God. Women, nowadays, take time to settle down. So, just go thru the normal post-35 checks and go ahead. So, you are no exception.
Late marriages are the latest social phenomemon.
By the way, there are certain checks to be done before getting pregnant. Just to check normalcy of your reproductive system. One is Alphafeto proteins, then ultrsound and sperm check of your husband. But, do consult a good gynaecologist before doing anything.