Okay so.
I had sex with a guy on June 27th, 2008. He wore a condom.
Then, starting July 3rd, 2008 I started having unprotected sex with my boyfriend.
I remember I had my period on June 10, 2008.
And I had a light period on July 13, 2008. But I'm not sure if that was just spotting.
I'm pregnant and due on april 19th 2009.
So, Did I get pregnant on June 27th, or in July?
How can I tell if I'm not sure the *period* in july was my actual period??