Have I reduced the chance of conceiving ?

[LucyCL]

My fertile window started on CD11.
CD 11 - 14: dtd in the morning every day
CD15 the day before peak: Didn't dtd because LH was quite low then it started to increase in the evening after 10 p.m
CD16 Dtd in the morning and the T/C ratio was 0.87 then I got the peak after 12 p.m
CD17 The O day: dtd in the morning
CD18 1 dpo: dtd in the morning

Has me not doing the deed one day before peak greatly reduced the chance of conceiving?

I wouldn't have thought so. And sperm meets egg regularly - it doesn't happen for people for reasons other than missing one of the days.

No, ovulation happens 12-36 hours after the peak anyway, you’re absolutely covered. We dtd once 4 days before my peak because of work commitments and got a BFP

Thank you for reassuring. I knew that I was covered but the chance of conceiving the day before peak is the highest so I was a bit worried.

It did prove that sperm can live inside our body for up to 5 days. Thank you for making me feel better about the chance of conceiving.