Thefirst date of my last perids was the 27th of july 2012, how many months am i? am i even pregnant?

Due Date 05/3/13: If you have regular menses and are no on birth control and not perimenopausal, there is high degree of suspicion that you are pregnant and you should check a homr pregnancy test. If you are pregnant and your menses are regular and not on birth control, you would be 15 4/7 weeks today (around 4 months) and would be due on 05/3/13. Your ob/gyn will confirm your pregnancy and due date.