Hi Mrs Cav,
It is entirely normal for you to be anxious especially after everything you have been through.
Anxiety heightens our responses to fight or flight. We are 'psyching' ourselves to react. Although you say you have hardly any symptoms, you havent described what you are feeling.
Having said all that I am a great believer in instinct.
If you are feeling that something is wrong then you will, I suspect, continue to worry until you have proof either way. Would your consultant agree to an early scan? Or at least your GP / midwife can do a heartbeat scan regularly if need be, until you get to see your baby for yourself.
After your previous experiences, your care must be treated as high risk & as such you should be offered Consultant level care as soon as possible, ideally prior to 12 weeks.
I hope this helps but please let me know if I can support you further.
The 'wobbles' are absolutley normal & we will be here for you when they happen.
Warm wishes
Liz