Took temp late

I had a few drinks the night before and then I woke up an hour later than I normally do to temp. My temp was 98.16- CD15. The day before it was 97.69 CD14 and then day after it was 97.92 CD16. Then after that it stayed above 98. I am confused now as the which day I ovulated because it was higher than the normal for before ovulation because of over sleeping and the alcohol. I should have ovulated that day or the next day but I am still sort of new to this and not really sure how to interpret that temperature into when I ovulated. Any advice will be helpful. Thank you!