My girlfriend and I had unprotected intercourse on her 6th day. However, there was no ejaculation that occurred. She usually has a 30+ day-cycle. We had another unprotected intercourse on her 15th day and again, no ejaculation. On her 17th day, we had protected sex and ejaculation occurred outside her vagina. But here's the weird part. She had light bleeding on the night of her 17th day, and on her 19th day as well. Can she be pregnant??? thank you for your help