Best day to DTD

Carolyn

I have many kids and have never had to try very hard, but I had a recent loss and would really like to get pregnant within the next month or two. I have a 28 day cycle usually and I usually ovulate on CD 13 or CD 14. If you could only have sex twice, which two cycle days would you do it? 12 and 14? 12 and 13? Other?