I had unprotected sex with my girlfriend on 22nd March and her expected periods was on 28th March but she didn't get her periods. We had a test today morning and the result was negative. Should we go for an ultrasound test and consult a gynaecologist or we are safe?

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.