How did I first know?

My husband left Toronto on February 18, 2008 and for some reason I kept thinking it was the first day of my period and I had not had it that day. Then I went online and checked my dates and it was actually February 22, 2008. I was anxious since the 18th that there was some chemistry working down there in my belly. I just kept thinking I am pregnant, I knew something was going to come up. My last period was on Jan. 18th 2008 and I have never missed a period. I waited two days and thought may be my period is late. I called my husband and let him know and he said right away, "You are pregnant!" I had to see it. I slept that night and had a dream in the wee hours of morning. I could see a pregnancy test with a big plus sign, I got up immediately ran to the washroom to check the pregnancy test. I waited for 2 minutes as prescribed and I saw a faint plus sign on it. I was jumping with joy. I called my sister and asked her to check if she can see it too. She saw it. I called my mom and she came with her glasses on and she said, " I can't see anything." I went for the blood test on Feb. 27, 2008 which showed 38 hormone count. The doctor said that was too low and sent me for an ultrasound. I anxiously went for the ultrasound on February 29, 2008 and the tech. could not see anything. She said it may be too early, but the lining is thick and the environment is good for getting pregnant. I was still happy that I was pregnant and kept my heart strong, prayed for the baby to grow. I went for an ultrasound again on March 10, 2008, I saw the gestational sack which was in my uterus and not extra-vaginal. It was a relief for me. I am still waiting on my blood test and hope that the count is increasing. It is a good sign that the baby is growing properly. The tech said that I am 5 weeks pregnant. This is what my baby looks like right now.

http://www.3dpregnancy.com/calendar/5-weeks-pregnant.html