Is it pregnancy or not?

Patient: Hi doctor,I have a question regarding pregnancy. My girlfriend and I decided to have a bit of experimental time and we were grinding our genitals together without a condom. I know I didn’t ejaculate and there was no penetration but my girlfriend has been having cramps from time to time last week. Although this might be due to her irritable bowel syndrome, but we are not entirely sure. Furthermore, my girlfriend had a very heavy vaginal bleeding, followed by very light bleeding just today. It has been 10 days since we had our genital contact. She also has an irregular period if that helps. Please help us, we are not looking forward to a pregnancy.

Symptoms: NA