My wife's s period was over on April 17th, 2013 and we started having sex then as we are trying for our second baby. On April 24th 2013 she had to undergo an x-ray. Now she doubts she is pregnant. We are concerned, if she was already pregnant when she underwent x-ray and it would have affected the pregnancy! Can you please advise? If she did any test before taking x-ray, was there anyway to detect pregnancy (on April 24th, seven days after the periods?