I and my friend do love with cloths on many times, and she often used touch my private parts. Her period occurs on 23rd november, then 19 dec 2021,15 jan, 11february, 12 march, 5 april, and now she is waiting for her period, period is not coming till 3rd of may. She also have pain in joints and legs from 3 months, but now pain is coming continuously in legs back of joints and feeling fatigue ,is it sign of pregnancy, she is 45 years old. Can period be delayed like that, pls help me.