I'm nearly 2 weeks late but I've done two tests which come back negative. But, I'm feeling sicky every evening, bloated/crampy feeling higher up than a period (normally lower), opening bowels alot more, slight backache, moods up and down, tender/sensitive nipples and feeling extra tired. Could it be early sign of pregnancy or am I getting a bit paranoid as if I am would I need to start blood thining treatment as prone to clot? Never had any symptoms in previous pregnancies.