ok i have been using the nuva ring and like it. i had sex during my period between may 31st thru june 4th, then had sex again on june 10th my 1st day of ovulation. my last period was very light. im exhausted. i have thyroid issues as well. not sure if that makes a differense, swelling breast that are tender. ive been under alot of stress lately. my last period was very light 2 days only and my enotions are out of control. could i be pregnant and how long should i wait before i take a pregnancy test? any and all help is appreciated.