I'm 22, I've had a very regular and timing period all my life.. This month I'm worried. My fiance and I have been having unprotected sex the past 3yrs as he is sterile. I started my pms on the 6th and finished around the 10th. On the 16th we had sex and I started bleeding like pms type of blood, about an hour after sex the bleeding stopped. We haven't had sex since then. Today the 20th I noticed spotting!!!!! I'm worried sick,I've never been to see a gyni. Please give advice I'm desperite