Having had that "feeling" myself with a pregnancy that turned out not to be right I'm always inclined to encourage women to trust themselves and do whatever they have to to put their mind at ease.

The not knowing is so much worse than actually knowing what you're dealing with kwim? I certainly wouldn't be above a white lie about some bleeding if that's what it took - early bleeding is super common and often no cause is found so there's no way they're going to accuse you of lying even if they scan you and see no obvious cause of any bleeding

I hope you can put your mind at ease, hang in there.