Pregnant or not?

Hi there,

I keep feeling like I'm pregnant. I'm already 7 days late. I've been experiencing some symptoms I found online: stomach pain, nausea, larger nipples than usual, and splitting headaches.

Two weeks after having sex, I lost a very small amount of blood (for 2 days) – just tiny drops.

I had to pee a lot, so I knew something was going on. I decided to get a pregnancy test, but it was negative. This was 3-4 weeks ago. But now I'm already 7 days late.

On Feb 5th I took another test, but it was negative again. I still haven't gotten my period, but the tests are negative. (The cheap Kruitvat test, €4.95 for 2) – are those tests reliable?

I'm still studying, and I've been feeling bad at school. I went to the nurse's office, where a doctor was on duty. She immediately asked me if I was pregnant (2 weeks ago). I told her I didn't know. She felt my stomach and said there was definitely some pressure.

Should I buy a more expensive test now?

I'm really worried.

Best, Tulpje123