i think im pregnant

k hi all this month i had mood swings an also really tired an eating more an nuasas well yesterday the 27th of this moth i started mt period it was pinkish an it wasn't that bad then it started to get brown i was crampin real bad it hurt it kept me up all nite then when i did get some sleep an woke up it still hurted but my period was a lil more heaver an red an i still hurt a lil i dont know if pregnant my peariod came 3 days early i useully start my period on the 30th so i was like happy becuase i might be pregnant but as my period got heavy i was upset my period is still the same right now with mild pain also when my sis got pregnant she had a a light period then it came into a reaguler one then it stop within 3 days so im really confused no the pain is in the middle of my cervix an last mite it was on my left side could i haveing a miscarriage or just implant ion i dont know im really confused i hade a miscarrage before so what do i do im worried that im not pregnant but i know i am i never start my period early it wass never light pink an i dont got gramps like a period its kinda different wich is funny becuz i am on it plz help me asap im not skinny so thats another thing too

on the 21 of june i had unprotected sex and i had already had my period this mont like around the 13 and now were five days past the date of sex and im having my period again and its not heavy bleeding just spotting and i put a tampon in hopfully i am pregnant i would be so happy but im just as confused as you are it could be implantation bleeding but my luck its probably just a very very early period