On 14 th of this month my boyfriend's penis just touched my vagina and as per my memory there was nothing on it but saliva, that's it nothing else happened. On 20 he just inserted his fingers and and a blood came for a moment and then stopped and we did nothing else. On 22 I started bleeding and exactly in the manner of my periods continuous 5 days, so I should consider this as my period. My last month date was 24 and this month 22 the bleeding started. I am not pregnant right? Can implant bleeding mimic period and last for 5 days? Please give proper explanation because I don't want to think about it further because this very frustrating I need to concentrate on studies.