My wife tsh values shows 2.54 .is there a chance that she is pregnant.because normally a pregnant woman has this tsh value?

Preg thyroid tests: F of unknown age and ethnicity and location. Husband notes her TSH 2.54. Asks is there a chance she is pregnant "as normally a preg woman has this TSH value?" ANS: not clear if TSH means thyroid stimulating hormone. For most this is a normal level. Usually no change in TSH with pregnancy ESP early on. Other thyroid tests can be affected. Please clarify.