Trying to get preggo

Shetika
Hey ladies so my ovulation period was over this past Saturday, June 13th but starting this week I've had mild cramping but per this app my cycle is due in 10 days. So, my question is could my fiancée have fertilized my egg or am I just overthink it. Now mind you my cramps aren't strong at all they are just annoying and they come and go. I took a pregnancy test just now and it's negative...Any advice?