Honestly, I wouldn't worry too much. The pregnancy is still very, very early in development, and it's basically just cell division and placenta formation during the point when you had your X-rays. There is nothing that can be done now, so try not to stress. Chances are, nothing bad will come of it. Just avoid them from now on. Take care and good luck to you!!
I found this online :
Are all x-rays safe?
Not all X-rays are the same, but most pose little exposure to the uterus and developing fetus. With dental x-rays there is hardly any exposure to anything but the teeth.
X-ray examinations on the arms, legs, or chest do not expose your reproductive organs to the direct beam. However with x-rays of the torso such as the abdomen, stomach, pelvis, lower back and kidneys there is more chance of exposure to the uterus.