Totally convinced myself I'm having a missed misscariage!

Iv posted a couple time on here about my worry of a mmc and my current symptoms or lack of. After doing what I shouldnt of done I scrawl Google I have completely convinced myself that I am no longer pregnant! I'm sat here crying! My appointment is on Monday but it's just a nurses appointment to go over medical history and future appointments and blood work, I don't think my mind will be at ease until I hear the heartbeat again which I don't think she will allow on Monday... So until then I'm going sit here like this 😭 and assume the worse!😭😭😭