Hi, my gf and I had oral sex on january during her periods. But I did not ejaculate as obvious. Before that we had sex on december twice once before her periods another while her periods. We used condom both the times. My gf had periods this month also but just for 3 days. Now a days she feels that her tummy has grown a bit, she is tired sometimes, today she felt pain in her tummy. We are very nervous. Is she pregnant?