I had my last period on the 3rd of April 2012 they are telling me that I'm due the 22nd of January 2013. I had pains on the 17th of April ( no bleeding) just bad pains and I had more pains on the 3rd of may ( no bleeding) on the 28th of may I found out I was pregnant and on the 8th of June I had my first ultrasound and was told I was 7 weeks and 3 days so I conceived in April ? Is that right?