Anxiousness please help??

So i am 30 weeks today. I started my period June 25th. I got married June 24th. Right before I got married my husband and I split up and saw other people and got married at the drop of a hat! Now that my due date is getting closer I am getting so anxious. I know he cam in me around July 9th. I remember it plain as day! Does anyone have any opinions or doubts that it is my husbands? Oh and I didn't have sex with another man 1 week before I got married. Also my dating scan matches with my period. So I'm probably just stressed about nothing.