I forgot to put my nuvo ring back in about a week and ago half. Me and my boyfriend have had sex in that time span several times and it wasn't till yesterday that I realized I forgot my birth control. What made me remember was a tight sore feeling in my lower abdomin. How can I figure out at this time if I'm pregnant or not and what ould the tight feeling be. I I don't have a reg OBGYN I'm in the process of looking.