Supposed to be 7w2d measuring 4w4d help!

Here are my dates:

LMP-10/20

Estimated period arrival-11/24

First test 12/1-Negative

2nd test 12/5- Positive.

Naturally my periods are off, as well as ovulation. When I went in to have an ultrasound today the u/s tech said I looked about 4w4d and it was very possible I ovulated late or didn't actually become pregnant for ten days after my egg was fertalized.

What is your experience ladies? Any thoughts? I'm so close to giving up hope. I've had one mc and it broke my heart.

Please pray for my little bean.