I Had An Unprotected Sex With My Partner Btwn 6-16

I had an unprotected sex with my partner btwn 6-16 dec., twice or thrice.... I always make sure to ejaculate outside.we are having unprotected from last 1 year....
She had periods btwn 2-6 dec.
Now after 1 week her body is getting elergy types.....red spots on her back nd on tummy...hands .
Is there any chance of pregnancy