Problem regarding conception of my wife.

First time We made a plan to have a baby after 1 year of our marriage..and we did all planing according to my wife's Menstrual period ...Her cycle is of 32 days long(regular)..so we have made relation 3-4 times a day...from 14th day of cycle to 17th day of her cycle..as we knew that after 14 days of ovulation the next cycle will start...we have sex many time..her previous cycle had started on 20/06/20...we had sex many times from dated 04/07/20 to 07/07/20...but today on 20/07/20..her period occur...according to my point of her ovulation happened on 14 days before her recent cycle means on 6/07/20...and we did a lot of sex on that day...but no conception..so sir/mam I m so depressed regarding the same...plz suggest me what we should do??...