Your experiences

Hello!  I'm new to this app but used plenty of others whilst try for the last 14 months!  So I've been for a hospital consultation and booked for bloods.  I'd given up on ovulation tests and obsessing because it was expensive and stressful!  Now I'm 3 days late, test bfn.  Trying not to obsess but has anyone had a bfn but found out it was bfp????