Pregnant after period!?

Kay • Mama of 1 [4 years in the making]💙 👼🏽 👼🏽[IVF Warrior]

So I ovulated September 22nd confirmed by clinic, had a 4 day period (normal flow) 10 days later, and went back to my clinic (Monday) to get cleared for transfer and my beta came back 2.5….

Took the test on the bottom a day later (first response early result) which measures min 6, and tested positive…got my beta done again on Wednesday, and is a 7…so it more than doubled.

I bought the Ovry tests, which test for 10, and were negative last two days, and today I got a clear positive as you can see lol. Beta today was 17.3.. so far nothing showing on ultrasound…I’m so confused lol do we think this is a chemical or possible ectopic but too early? Or has anyone been successfully pregnant with a chart like this? lol plz help a mom out