so I've been spotting(very little and nothing like my miscarriage) and thinking of going to go into the walk in clinic for a ultrasound tomorrow. I'll be 8 weeks. is it okay to get a transvaginal ultrasound done?

 or will they do an abdominal that far along? I'm just worried cuz in august I had a miscarriage and after a transvaginal ultrasound I started bleeding and I had a miscarriage, are they safe or should I deny that kind of ultrasound ? It might have just been a coincidence because the first time I went to the ER for cramps last pregnancy my HCG numbers were low for 4 weeks. Only 137 and like 5 days later 214 when I went in for the first time spotting bloody discharge.