I usually get my period the first week of every month, and I didn't get one in Feb, instead me and my fiance had sex about every day. Towards the end of Feb., I had what was thought to be implantation bleeding. I woke up to some brown and pink spotting which lasted maybe 3 days, but it got heavy. I did read that implantation bleeding varies from woman to woman, but it wasn't blood red. Also, I can't even lay on my stomach without feeling uneasy. I am tired 24/7 it seems, and I get nauseous threwout the day. He didn't wear a condom, but I was on Nuvaring and I don't remember if I was supposed to take it out or not, so I don't know how safe it was. Any ideas? I took a test from the dollar store that read negative, but it might be too soon to tell.