Me and my girlfriend had an intimate encounter on 31 December 2019. We used condom and there was no penetration atall. When I ejaculated, she was wearing 2 layers of clothes and I did not ejaculate on her. She expected her period on 4th January 2020. I counsulted on practo and the response is that there is no chance of pregnancy. We are both 20 years of age. She is now very worried about any hormonal imbalance in her body. She is showing all symptoms of a period but not getting it. She is worried about something being wrong with her body. What should she do now? How can she get her period?