I had unprotected sex on my fertile days last month, period came two weeks later as usual like clockwork. However it was only 3 days and lighter than usual. Usually my periods are 5 days.
This month I am on day 18 and I have not ovulated - every month I know when it's happening due to ovulation pain, discharge, and emotion changes. It hasn't happened this month. Instead I feel very very tired and nauseous.
It's impossible right? I've heard of implantation bleeding but apparently that is very light bleeding and my period was heavy enough to need tampons. Has anyone had a 3 day period and been pregnant? I know I could just take a test but it seems so unlikely I don't really want to waste the tenner as I'm pretty sure it's impossible?