A scan doesn't protect a baby, though.
EPU may well see you if you're cramping, but they wouldn't scan in most hospitals. I looked this up when I had cramping at 13 weeks, and Mumsnet said I was being weak by not demanding a scan and staying there until they did it. They wouldn't. Eventually a lovely midwife explained that scans don't change outcomes and they won't scan at that point. They did HCG blood tests, but that doesn't offer immediate reassurance. She advised a private scan, but said they can feed into anxiety for more scans.
You do get extra (optional) scans when you go for reduced movements after 28weeks but that may not help you.
This is also hospital dependant - mine only offer a scan for reduced movements after three incidents, they usually offer monitoring, but only above 22 weeks. If you do have three incidents, you can have the scan, but then can't use the birthing unit or have an unmonitored birth; you have to be connected to the machines on labour ward. A friend of mine suffered badly with anxiety during her pregnancy and so went in whenever she was worried about not feeling baby as much, and she was really surprised when the time came and she was so limited in options, because medically everything was fine. Again we looked into it, and it's a common policy.
OP I do feel for you. I had bad cramping around 13 weeks, and then a day of bleeding, which was really difficult. I was a wreck until my next scan, I couldn't concentrate on anything. Everything was okay, though, and he's two now! I hope everything is okay for you, too.