I am 17 wks pregnant Am I 3 months or

Patient: I am 17 wks pregnant.. Am I 3 months or 4? When pregnant with my first child I was told that 8 wks = 1 month.. Is this true?

Doctor: Hello,Thanks for the query.We follow the same method as calendar even for pregnancy. 4 weeks corresponds to a mont h and 8 weeks is a 2-month old pregnancy. Hence, 17 weeks is 4 months plus one-week pregnancy and not 3 months.Hope this helped.Regards