Ugh, what day do I do It?

So my doctor's say to "get busy" on days 10, 12, 14, 16, 18 of my cycle. For the best chances of conception. The glow app says my ovulation day is day 11. How accurate is the glow app really. My test strips read Lh surge. I want his swimmers to replenish. Really I don't want this stress. I just want a baby.