Ok so I missed a period like 2 or 3 months ago took some tests and they were negative and my period eventually came on that following month and had been normal until now. I missed my period for July and I’m still waiting for a period. According to glow I am 16 days late. I have taken two tests and they were both negative so probably not due to pregnancy.I have felt bloated and very tired but no other period symptoms. I’m starting to get sort of nervous I have had a previous doctors appointment and they told me everything seemed fine but I’m wondering why am I missing periods like this?