Calculate my due date

Likely around early October. What did your doctor or midwife say? Have you had a scan?

Assuming December 25 was the FIRST day of your period, according to my gestational wheel, your due date is approximately October 1. Now, please understand that this does not, in any way, to be considered as medical advice. At this point, you are almost 18 weeks pregnant, and it's imperative you get proper prenatal/antenatal care.