What could be the possible reasons forbrown clots at 14 weeks.us shows baby is normal.still clots come out if i vomit or do something physically.

2nd trimester bleed: Second trimester bleeding may result from several conditions. Old brown blood is not the result of an active bleed, but is more likely from a previous event. These are most commonly from prior subchorionic bleeds (implantation bleeding). If infection has been ruled out, the other concern is an incompetent cervix. An exam and transvaginal ultrasound can assess the cervix length.