... one was on August 8th. They had told me to come every 3 months, so to me that would be November 8th (today is the 9th so I went in today) and they had told me that I was over a week late for my shot because I should have gotten it October 30th, 12 weeks. I did not know this because they never said that just that it had to be every 3 months. So i was wrong. They want me to wait 2 weeks without intercourse to continue the shots. But am I at a high risk for pregnancy because of this? My fiancee and I had unprotected sex, thinking I was safe, 2 days ago. Am I at a high risk?