Can switching PCOS/PMOS pills delay withdrawal bleeding in women?

Question

Hello doctor,

I have been taking birth control for my PCOS or PMOS, but I was switched to a different pill recently. Now, I am on the third day of the placebo (sugar) pills and have not had withdrawal bleeding. I am not pregnant.

Is this normal?

Please help.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I have read your query and can understand your concern.

It is not uncommon to experience changes in your menstrual cycle when switching birth control pills, especially when transitioning from one type to another. Withdrawal bleeding typically occurs during the placebo (sugar) pill phase, but it can sometimes be lighter, delayed, or even absent, particularly when changing pills.

Here are a few things to consider:

Your body may still be adjusting to the new hormone balance in Yaz (Ethinyl estradiol and Drospirenone), and it could take a few months for your cycle to stabilize.
Having PCOS (polycystic ovary syndrome), now known as PMOS (polyendocrine metabolic ovarian syndrome) can also affect your cycle and lead to irregular bleeding, even with hormonal contraception. The heavier bleeding you experienced on your previous pill may have been linked to this.
The absence of withdrawal bleeding during the placebo week is not necessarily a concern, especially if you are not pregnant and have been consistent with your pill. Some women experience lighter or no bleeding at all when switching birth control methods.
If you have not missed any pills or had other risk factors, pregnancy is unlikely. However, if you are still concerned, you can take a pregnancy test to be sure.

If your cycle continues to be irregular or you notice other concerning symptoms, it is a good idea to check in with your doctor to ensure everything is on track.

I hope this answers your query.

Please let me know if I can assist you further.

Thank you.