I'm in the 2 week wait period (7 days down). My cycle is 27-29 days (longest 34) but generally around 28. We used preseed this time. Unfortunately, we only used it once during ovulation because my hubbs doesn't do well with intimacy and alcohol :( (darn it!!) however, we did twice prior to my first ovulation day. EG first ovulation day was a Thursday. We  were intimate Sunday, Tuesday (our anniversary), and Thursday (first High Surge).