BFP at 3 weeks pregnant?!

[abbieo]

So I got a bfp this morning and I've just done another one and there's no denying it's a positive.. I've worked out through my last period that I would be exactly 3 weeks today. Surely that's ridiculously early for a bfp?!

Has anyone else had one this early?

Last period doesn't really tell you everything. When did you ovulate?

Do you have a shirt cycle?

@ShowOfHands I started testing with opks cd10 but I never got a positive, so I have no idea when I ovulated. I started spotting brown CD19 and it's still going on today with cramps so I'm not sure what's happening!

@DatingAWidower22 my cycle is usually 30-31 days

I got my BFP on CD21 .. ovulated early that month .. no 23 weeks along and expecting our baby girl in August.
Congratulations xx