I have missed my period this month.. it was dated on 24th August. I had suffered through ovarian cyst 4years back. But since then I was having my normal mens. Recently 2-3 months i was noticing that the date was getting delayed.. Right now ,There is sudden cramps in lower abdomen.. legs are getting heavy at times.. nausea is also persisting. Feeling tired and weak throughout the day even after having 8hours of sleep .