Ok as a mom of 3 soon to be 4.... It is way way to soon for a dr to say its not forming right. They dont do blood work until after the missed period. Even at that the first ultra sound isnt done until at least 6 weeks into a confirmed preg. THEN they coulld. But if it were a friend or person i knew that tried to tell me this story i would call bs.
Ask to go to the doctor with her or see the paperwork.
there is ABSOLUTELY no way that a DR would know that early that the pregnancy isn't forming correctly. AND the DR wouldn't test her until she was at least a week late. I honestly think & feel that your ex is just trying to trap you, which is very sad, but typical of some teen girls. You have every right to ask to see the results of the tests, going with her to another appointment or free clinic for the test, or better yet surprise her with a pregnancy test & ask that she do it. Early morning urine will give the best result so getting it done EARLY in the AM is VERY important.
Good luck & keep us updated
Melissa
My thought is you need MUCH MORE INFORMATION.
Go with her to her next doctor's appointment.