Question

the chart below depicts the levels of two hormones during an individuals menstrual cycle. what indicates that the individual may have become pregnant during this cycle? click or tap a choice to answer the question. the progesterone level increased in the last half of the cycle and did not return to preovulation levels. neither of these hormones suggests pregnancy. the progesterone remained low in the first part of the cycle. the lh level spikes about halfway through the cycle.

Explanation:

In a normal menstrual cycle without pregnancy, progesterone levels rise after ovulation and then drop if there is no fertilization (returning to pre - ovulation levels). If pregnancy occurs, the corpus luteum (and later the placenta) continues to produce progesterone, so progesterone levels remain elevated and do not return to pre - ovulation levels. The LH spike is a sign of ovulation (which is a normal part of the menstrual cycle, not specific to pregnancy). Progesterone being low in the first part of the cycle is also a normal pattern (progesterone is mainly involved in the luteal phase, which is the second half of the cycle).

Answer:

The progesterone level increased in the last half of the cycle and did not return to preovulation levels.