If you think she maybe pregnant check out her nipples - are they swollen or quite pink? Has her behaviour changed i.e. sleeping more?

If she is not pregnant then look at her claws - are they scuffed. If they are this can be a sign that she has been hit by a car (I am not trying to panic you here - just trying to rule out some things).

First and foremost though to put your own mind at rest is get her checked at the vets as soon as you are able.

I do hope she is fine and do let us know how you get on.

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Kaz

For kittens, joy is for the asking and smiles are for the giving