:$ My last mc was nov 17 2008. Calanders said I should bd the 28th- dec 6th. I didnt want to miss my chance so I bought ovulation kits. They were a pain at first, it was hard to tell if the test was positive or negative but my first was what it seemed almost positive(I took test on the 2nd)So I took anotherabout 4 hrs later. It came up darkerq but6 still not positive. Since my cycle is regular and calanders said I would ovulate 3rd or 4th I stayed up till 2:00am on the 3rd and took another test. POSITIVE!! The next morning I took another and it was positive as well, the test line was darker than control line so im sure. The one in the afternoon said positive too but it was not dark like the last. So I took another at 8 and it was negative. My hubby works nights so we couldnt bd after my first positive at 2:00am. We did the do at 8:00am and again at 3:00pm that day but im scared we missed it from the 2:00am to 8:00am. The egg only lasts 12-24 hrs right? But Calanders also said to bd 3 days after o, has anyone had a calander that was wrong? :-( We went to bed today but not till the afternoon, and we went to bed before my o day on the 27th, 1st,2nd, and 3rd(4th) just hope I got that sneeky egg. Oh how long after sex should you wait before you get up? >:(