When to BD to get pregnant

Hi ladies,

So I had my +ve ovulation test on Thursday morning and peak ovulation on digital when I took in the afternoon. However when I tested in the evening,it was negative. I BDed Tuesday, Wednesday and Thursday. My husband was very tired on Friday and we didn't BD. Is it enough and how to find when I ovulated? Should we BD 2 days before or after ovulation to succeed in pregnancy ? My chart is as below. This is the first month of us trying and I'm not sure but very anxious of what will happen. Also does anyone have recommendation of food to eat which supports luteal phase and implantation ?

All the best everyone Ttcing this month