Very confused about potential pregnancy!

[HannahM2328]

So, I'm 23, my boyfriend lives overseas so last time I had sex was 9 weeks ago, in the last 2 weeks I've been feeling horrendous nausea and fatigue with no apparent cause. I am on the contraceptive pill and have had 2 normal periods since seeing my bf last so assumed I couldn't be pregnant, but this sickness just won't go away, I bought a test and it showed negative but looking at it like 20 mins later there was a faint line indicating positive, I've bought 2 more tests since and both have not worked (no line in control box - very annoying!) Probably a stupid question, but could I be pregnant if I have had 2 normal periods? Please help, don't wanna go to the doctor and sound like an idiot by saying "I havent had sex for 9 weeks and my periods are normal but could I be pregnant?"

If you have a faint line some time later than the test says it's probably an evaporation line I.e not a positive. It should come up strongly positive v quickly if you were 10-11 weeks or more (2 weeks added on to when you could have conceived, normally counted from your last period) Some women do have bleeding at the time their period would have been due but probably not a normal period.
You should go to the doctor about the nausea, I assume they'd do a test to rule out pregnancy anyway, then if there is doubt they'd check blood HCG levels.