Okay so this is kinda weird for me (first time posting on this page) but I haven't had a peroid in 3 almost 4month and I took like 10 pregnancy tests and they all came out negative, during sex and all I'd bleed alittle so my boyfriend was convinced I was pregnant. Then randomly just before 4month my peroid started for about 5-7das (average ). Now my periods 5days late again. Dose it sound abnormal? How do I go about this?