Sorry to hear that. Do not lose hope. BFNs are common enough at this point even in successful cycles. HPTs cannot be trusted for the negatives at this point. I think you should try again in 2-3 days.
There are women who had negative HPT on the morning of their positive blood test. The blood test is much better early on.
Avoid IVF and surrogacy in Ukraine. Ukrainian centers pay shills to post here under numerous sock accounts pretending to be patients in Ukraine. Centers using such deceptive advertising cannot be trusted and should be avoided.
Dont lose hope. I got a + beta on day 12, it was low, only 31. The next day I did a HPT just so I would know how it feels to finally see a + result. It was negative. I waited 2 days and re did it and got a + finally, day 14. I went back on day 15 for my repeat beta and it had increased to 117. So dont give up!!!!