I havent had my period since December. I've taken about 5 pregnancy tests and they are all coming up negative. Could it be possible to stil be pregnant? My breasts are very tender, I feel sick about half of the day and the other half, it's like I can't get enough to eat. I dont won't have any health insurance until 3 months from now. Are women's health clinics cheaper than just going to the doctor. If I'm not pregnant, my main concern is being infertile. I'm only 20 years old and want to have children someday. Is there a chance that these symptoms could lead to infertility. Thanks so much.