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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can A Pregnancy Test Be Negative But Still Have Missed Periods?

Hi I had unprotected sex around the second week of April and took the morning after straight after sex then the second pill 12 hours after been waiting for my period and still havnt gone.was supposed to start on the 29th of April but still nothing and now it s the 2nd of may..I ve taken 3 pregnancy tests and they all negative now I m not sure if I m pregnant or not it s really stressful plus I m feeling tired, lightheaded, hungrier, have headaches and my boobs are slightly bigger I m really confused thought the pill was effective within the first 24hours please help
Wed, 19 Oct 2022
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Anesthesiologist 's  Response
Hello,

As you had taken the morning after pill straight away after sex and also repeated 12 hours later, there is very very minimal chance of you being pregnant. The effectiveness of morning after pill is from 75-90%. The side effects of this emergency contraceptives are that after you take the morning-after pill, it's totally normal for your next period to be different from what you’re used to.

It may come earlier or later, and be heavier, lighter, or more spotty, with stomach upset, dizziness or lightheadedness, breast pain, and nausea. Thus, all your symptoms are not indicative of pregnancy but the side effects of morning after pill.

Take care. Hope I have answered your question. Let me know if I can assist you further.

Regards,
Dr. Pallavi M., Anesthesiologist
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General & Family Physician Dr. Pinal Vaghasiya 's  Response
Hi,

You should visit the gynecologist first. You should get the urine pregnancy test done at laboratory and get 1 ultrasonography of pelvis done to rule out pregnancy or other causes of missed period.

Take care. Hope I have answered your question. Let me know if I can assist you further.

Regards,
Dr. Pinal Vaghasiya, General & Family Physician
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Can A Pregnancy Test Be Negative But Still Have Missed Periods?

Hello, As you had taken the morning after pill straight away after sex and also repeated 12 hours later, there is very very minimal chance of you being pregnant. The effectiveness of morning after pill is from 75-90%. The side effects of this emergency contraceptives are that after you take the morning-after pill, it s totally normal for your next period to be different from what you’re used to. It may come earlier or later, and be heavier, lighter, or more spotty, with stomach upset, dizziness or lightheadedness, breast pain, and nausea. Thus, all your symptoms are not indicative of pregnancy but the side effects of morning after pill. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Pallavi M., Anesthesiologist