We've been TTC. I haven't had a period in over 2 months. When my period was late in March I took urine tests at home at 4 days, 7 days, 10 days, and 14 days late. Blood test at 10 days. All negative.
I wondered if my missed period was down to having been Very ill for 3 weeks or showing signs of a thyroid problem after pregnancy.
Going on holiday next week so decided to take another test to see if I'm clear to drink on holiday.
BFP at 4:45 in the morning. So only mocktails for me. 
I just can't believe my first trimester is almost over without me even knowing I was pregnant. It does explain my exhaustion though and sudden dislike of walking. I just thought it was because I'd returned to work around the same time.