I am wondering (very vaguely) if I might be pregnant. Low-level nausea (not actually sick but constantly swallowing and the only thing that helps is eating). Quite a lot of wind, which isn't helping the nausea. Finding the smell of my moisturiser unbearable at the moment. Sore boobs and a sort of not-quite-crampy feeling which made me wonder yesterday if my period was due, but I'm mid-cycle (last period was about 2 weeks ago and I'm not due for another 2). I have very occasionally felt a twinge at ovulation time but that's not what I'm feeling at the moment. And very tired.
Fully appreciate that all of this could be equally consistent with not being pregnant, but would like to know. Am I right in thinking that there's no pregnancy test that will give me a reliable answer before the first day of my forthcoming period?