Hi, Im 18 and was on the nuva ring. I counldnt afford one last month and i should be starting my period this weekend. I have been having bad nipple pain, they have been sore to the touch and hard. I have bad gas exspecially after I eat, I wake up tired and dont want to eat and kinda have nausea. Frequent headache and never had these symptoms before. A family member said I could be pregnant and I took two cheapy pregnancy test in the same day and both were clearly negative. Can I get some advice. ??? Please help me. :'(