Go to the the drug store and buy a few pregnancy tests. Use them every 4 days to get an accurate diagnostic result. If its positive, you have some choices, which may or may not make the grandparents or mother comfortable. Young
boys have been impregnating young girls for centuries. However, you need to discuss this with your parents, with her and with her parents. Sixteen year olds like to still think of themselves as kids, and like to pass along responsibility to the grandmother. Think about this, my mother told me she raised her children, and was no longer interested in raising more babies. As we get older, we wear out faster, and women in their late 40's, 50's and 60's can indeed raise children, but then their retirement is postponed at least 18 years. I wish my mom and grandmother were still alive, they would be laughing over the idea that there children would expect there own parents to raise the grand babies so the parents don't miss out on parties, school functions plus get to stay out as late as the choose, while living off mom an dad, and expecting mom and dad to provide meals, medical care, dental care. The children you produce are your responsibility. If you die or wind up in prison, the grandparents will assume the roles you abandon.......but that different, if you are dead, that's that. If you are in prison you didn't give a big bottle of crap about your children or the mother.