The last time I had sex was on 12/20/11. It was unprotected. I didn't think I was pregnant because I think I had my period, on 01/06/12. It was a week late than usual. I am trying to remember how long was my period and if it was heavy. Because I forgot to log it down on my menstrual app calendar. But I'm assuming it was 5 days as usual. Now it is 02/11/12 and no signs of my period. I taught I was just going to be late again, but calculating from the calendar, I feel like it is very late. I have took a pregnancy test at home last month and just 3 days ago. It came out negative. I haven't seen a doctor yet.