My friend had unprotected sex with her boyfriend on 27th August and she took ipill (ecp) after 7 hours of intercourse. After 4 days I.e. On 1 september she started bleeding which continued till 4th September. Then she did home 4 urine pregnancy test after 21 days of intercourse, 28 days, 35 days and 42 days of intercourse. All the test came NEGATIVE. She did a beta hcg test on 18th October which was 51 days after intercourse. The result was <1.20 miU/mL. Then after 5 days i.e. On 23 October she started bleeding which continued till 29th October. Last month also she bleed from 23 November to 29th November. Does she still have to be worried about pregnancy?