We are ttc and have one previous pregnancy 3 years ago. My cycle is like clockwork but this month, 8 days after intercourse i started feeling very tired, nauseous, had crampy pain in lower abdo and a metallic taste in my mouth. Period was 1 day early and lasted 2 days, normally lasts 4-5days (was normal but had a couple small clots). Since my period i have had a pins and needles feeling in my lower abdo, test was negative. Please help it is driving me mad!