Less than a week ago my boyfriend and I had unprotected sex, I have PCOS and was told it would be near impossible for me to become pregnant, so I thought nothing of it. Before this I had two months of regular periods and two months into dating it vanished, my mom thinks it's stress, but I'm spotting and sick to the stomach, have horrible heartburn. Should I take a test after 14 days? If it's positive what do I do from there?