After a trigger shot, ovulation usually happens around 36 to 40 hours later, so the fertile window spans a couple of days around that point, not only the day of the injection. Missing intercourse on one of those days doesn't mean this cycle has failed.
Next Steps
Sperm can survive for a few days, so intercourse on the other days still counts toward this cycle. A home
pregnancy test around two weeks after the trigger will give you a clearer answer.
Health Tips
Please confirm the exact timing with your fertility specialist, since she has your specific monitoring details for this cycle.