SOS need advice !

Alright ladies, in need of some advice ! So last year from march to September I missed all my periods , they did tell me janurary of 2018 that I had ovarian cysts on my right ovary but my left Was clear, so I just figured that’s why I missed so many. Ever since September I have had fully regular periods again right when I’m supposed to roughly 28-30 day cycle. BUT Recently this year since the beginning of March I have been VERY sexually active with my significant other, only been using the pull out method & have not been on any type of birth control since March of 2018. The last period I got was a pretty bad one starting April 1st 2019 & that lasted for six days with TERRIBLE cramps, I have not gotten my period since the one in April & I am now five days late ! Freaking out because I had mild cramps and constant headache six days in a row & feeling very tired, thought for sure my period was on its way ! But my mild cramping stopped yesterday, still no period at all & now I have a lower back ache, bloated & my nipples are sore which also normally happens before getting my period but weird that my cramps have stopped & that there is no bleeding yet , also not sure if this has anything to do with anything but have been feeling hot so decided to take my temp yesterday afternoon & was running a 99 degree temp but back to normal temp this morning , just wondering if anyone has any opinions or advice ??