Can i have twins

Patient: I am pregnant but when i first found out i was pregnant i was having a boy since im 21 weeks im having a girl is there a possible i can be having twins

Symptoms: Pregant

Doctor: Hello,Thanks for the query.Well, at 21 weeks, any evidence of twins can be easily seen with an ultrasound without any discrepancy at all. So it is advised that you get a repeat ultrasound pelvis done to confirm the type of pregnancy.Hope this helps.Regards