What is the most logical next event?

How to cure irregular menstruation
Talk to your doctor about hormonal therapy.
Hormonal therapy works by interrupting the signals in your hypothalamic-pituitary-gonadal circuit, which links your brain to your ovaries.
By interrupting this circuit, the therapy can be used to stop ovulation and stabilize your hormonal ups and downs.

Pick your answer from:
[I] Ask your doctor if hormonal therapy is right for you, and what treatment you need. Tell your doctor about procedures you want to try to reverse.;
[II] Avoid having sex early in the pregnancy. This can inhibit your ovaries' ability to produce the hormones that are responsible for ovulation.;
[III] This will allow your menstrual cycle to get back on track. Talk to your doctor about getting a prescription for oral contraceptives.;
[IV] Switch to a low dose of estrogen during the period of pregnancy. Select a low dose of estrogen for the majority of the menstrual cycle.;
[III]