Worried. 😔

Keana
8weeks 2 days pregnant. So about 4 days ago I started spotting, it was a super light pink at first. Then yesterday I went to the emergency room because it turned a bright red color and is only starting to slowly become more and more and I'm starting to cramp worse.  The ER did nothing but take some blood tests and an ultrasound that they wouldn't let me see. Then let me go home saying yeah your pregnant but we think you should go to an Obgyn. they told me that there was nothing in the sac and that it was too early to tell. When I had my first daughter they saw her by 8 weeks. I'm so worried. Every time I go to the restroom I just cry my eyes out. is this a miscarriage?Â