So i had sex 3 weeks ago today. A few days later i went to the doctors to get my contraceptive injection the day after it was due (my doctors had no appointments on the actual day), usually, towards the end of my injection i start to spot. This time i havent. I have been on the injection for 2 years now and never had any issues before. When i went for my injection, the doctor i had said it doesnt matter which cheek i get it in, however, the burse usually does it opposite cheek to last time. Even if i did a pregnancg test and it aaid negative i wouldnt believe it. Where can i request a blood test?