Ovulation tests!

Sam
These are the 3 tests I have taken today, I'm cd 13 and the top was 12.30pm the middle was 4pm and the bottom was 8.30pm. Fair to say I'm going to ovulate in the next 12-36 hours? I'm waiting for my fiancé to get home from work then we are going to bd tonight and was wondering if we should do in it the morning aswell and tomorrow night? Let me no what you think :)