Drs thought MMC, baby said “im here”

I had a positive home test on my birthday, Nov 5th! When I went to the doctors on the 7th, the test was very very faint. It was way past my last period (40 days), but when he did a scan there was nothing there, probably a mmc or chemical. He had me do a beta anyway, it was 72. About 40 hrs later on the 9th, it was 123. He said it was climbing but he wasn’t convinced it was a sticky baby. Well fast forward to the 15th and it was 892!!!! He called and said “congratulations, it looks like you really are pregnant”!!! It’s been SUCH a rollercoaster. What was originally thought of as a MMC, was actually just late ovulation and miscalculating due date! Wow i can’t believe I’m actually pregnant. So so excited