Yet another precum question... Help greatly appreciated.

Here are the facts. I had sex with a girl I went to visit in Canada a month ago. She told me she was on the pill, but I found out she had JUST started the pill, and had already missed a day in her first cycle, so I'm going to assume she was not protected. I didn't use a condom or any means of protection. I'll be honest, I jack off too much. Prolly at least once a day, if not more. I had sex with this girl alot. Prolly stuck my penis into her vagina about 8 times over the course of 4 days. I didn't come close to finishing inside her. The fact of the matter is, I only finished twice, and both times, my penis was well far away from her vagina. She was supposed to get her period about 7-10 after I left. She didn't. She got it about 3 days late, and it was just some light bleeding. I also think she might have been ovulating. And there was certainly a ton of precum put in her. She's since gotten more consistent on the pill. And for the last two weeks, she has sporadically had fits of nausea and dizziness. Her breasts are sensitive, she says the feel larger, her appetite has increased. She also seems to be getting tired easier. She took 3 pregnancy tests about the time she would be 4 weeks pregnant. She took all 3 of them in the afternoon. 2 were negative, 1 was inconclusive. She has taken this cycle of the pill consistently. She says it has her period coming on Wednesday. Am I freaking out over nothing? Could all of these be side effects of her birth control, Yaz? I know I should wait till Wednesday... but I just need to know I'm over-reacting. I'm really worried she's pregnant. Someone tell me I'm making a big deal out of nothing.