The nurse is checking a client's record for probable signs of pregnancy. Which are the probable signs of pregnancy that the nurse would note? Select all that apply.
a. Ballottement
b. Chadwick's sign
c. Uterine enlargement
d. Braxton Hicks contractions
e. Outline of fetus via radiography or ultrasound Rationale, Strategy
f. Fetal heart rate detected by a nonelectronic device