So is this possible? All taken today:

—7am - negative OPK

—11:30am POSITIVE OPK

—4pm urine so dilute almost no second line, chugged lots of water

—5:50pm OPK barely negative

Could my LH surge really be that short, starting after 7am and ending by 6pm? Or maybe my 11:30am was not actually positive? I don’t have pics for all just some:

Thanks for your thoughts. As you can see my cycle is really long after BC so I am trying to find some hope

**UPDATE:** 12/7

For others who have this question in the future, the answer is YES your surge can be that short. I ovulated the next day, CD 33, with a clear temp spike the next day (although need two more days of high temps to be completely sure. See chart.