im worried because she gets tired alot, she gets cramps...

Hi, me and my gf were playing around and got carried away and made out, at the time we rubbed our genitals, i didnt ejaculate any where near her vagina and there was no penetration at all, this happened on the 18th march, after that we both feared that she might be pregnant, but she didnt miss any of her periods and had her last one on the 1st of this month which is her regular date, but im worried because she gets tired alot, she gets cramps after her periods and pain in the abdomen, on her last period after she had it she vomitted too, is there a chance of her being pregnant?