i have 2 friends who have a chance of being pregnant…..both have started there menstrual cycles but one thinks that her’s is a false period b/c it was late and short….and she usually has long, regular periods……she has also experienced other symtoms of pregnancy…..do you think that this could have been a false period?…..and are there any signs other than iregularity that can show a false period? 🙁