This is in context to my girlfriend. She is 20. Her LMP was Jan 24. We tried having intercourse on 20 Feb. However, there was no penetration and I did use protection. We were intimate though. So far she hasn't received her periods. She never had a late period. Right now she is feeling tired for the last 2 days. She took a Beta Hcg test on the prescription of a doctor on 28 Feb. The HCG was <1.2. The doctor mentioned we have nothing to worry but due to no signs of period, we are worried. We are also doubting that the test was done too early. I wanted to ask if this is quite normal or should we wait for a certain time and test again? Thanks.