Have you told your doctor? If so what did he/she say? I would go to the doctor because i'm a worrier. I'm sure nothing is wrong though. If you go to the doctor it would at least give you peace of mind and help you not stress.

I don't know what the health system is in canada but i'd be demanding an ultrasound which would let you see the position of the baby, heart beat size etc, better than the dr just listening for a heart beat & saying it's fine, that probably won't reassure you, not after a miscarriage. I had several miscarriages so I know how stressful being pregnant can then become & it may be that what you're feeling is just stress.

The other thing you could ask for is an amnio (there is some risk of miscarriage, but many drs believe that such miscarriages are when there is something wrong or going wrong anyway & the amnio just speeds it up).

Good luck