Boy or girl guesses? 13 weeks

So today I went to try and do a gender ultrasound and it was a complete joke. I should have read reviews as they are all terrible. Anyways the people didn't know what they were doing and had no boy or girl gender to give me. I got a cd with pics which to come home and find out I only received 4 pictures. Not really sure what this is but can anyone tell boy or girl? We did blood test so should get those results any day as well but just thought it would be fun to see the baby! So angry I didn't just wait until my next dr ultrasound.