Me and my GF were playing around with each other for few times for now...Most of the times, I had my pyjamas and she had her pants and panties on her. When my pyjamas get wet, I felt nothing was wrong as she had period after the event. But last time, during the flow, I had removed her panties and my pyjamas. I was touching her vagaina with my fingers and touched it with my my penis too for few times. When I felt watery on my thing, I think I stopped doing the same. I did not pierce my penis inside her vagina for sure. After that for last 2 months, she did not get her periods. Also she started getting stressful at work and other issues after the event, did not have her food regularly. I'm confused if she is pregnant or if her missed periods is due to lack of food or stress. Any Advice?