4 doctors weighed in:

I am 24. I have not got my period. I'm 12 days late. No changes in diet exercise or health. I have taken pregnancy tests all neg but no blood test yet?

4 doctors weighed in
Dr. Gurmukh Singh
Pathology
3 doctors agree

In brief: See below

If you had sex since your last period, you may repeat the pregnancy test.
Use first morning urine and follow the instructions carefully. It would be better to get a blood test for HCG. Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. If you do not wish to be pregnant, use contraception all the time. You may consider implanted contraceptive or an IUD. Consult this site for more information on this topic. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx Practice safe sex. Get HPV vaccine.

In brief: See below

If you had sex since your last period, you may repeat the pregnancy test.
Use first morning urine and follow the instructions carefully. It would be better to get a blood test for HCG. Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. If you do not wish to be pregnant, use contraception all the time. You may consider implanted contraceptive or an IUD. Consult this site for more information on this topic. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx Practice safe sex. Get HPV vaccine.
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