I've been having some of the pregnancy symptoms: nausea, spotting, sleepiness, delayed period. The most possible thing that could have gotten me pregnant is pre-ejaculate that has not yet entered the vagina.

My period was delayed for a week, during which I had continuous spotting. After a week and a half of a medium to light period (I usually have a period for 5-7 days), I began spotting again.

I've also had past hormonal problems before this interaction. I have had an extended period (7-8 weeks) which was corrected via 3-4 months of birth control. I have stopped using birth control 5 months before the interaction.

So here's my question: could these symptoms be signs of anything else? Stress, cancer, vaginal or hormonal problems in general? Also, I really don't think I'm pregnant, but if I am, what are my options (other than keeping the child since the father will be half-way around the world for as long as we know)?