Is this baby in my uterus?

So I went to this clinic and the equipment was very old and didn't work well and the people doing the ultrasound were nurses not rad techs so does this look intrauterine? They said it was but I'm not convinced. This was at 7 weeks but now I'm 14 weeks and my new OB says my uterus is growing well and she found a strong heartbeat. I'm just nervous because of left sided pain but my OB is dismissive. Transvaginal ultrasound.