HELP!?

Haily
I'm trying ttc for the first time and I need a mothers help I and my hubby dtd the 18,19,and 20th my ovulation due date is today the 23rd  I'm really hoping I do conceive if not I'll be sad but is it still possible to conceive 3 days before ovulation and lately I've felt cramps just a lil wat could that mean? I need all the answers I can get as well as baby dust / prayers