Cramping and BFP with ivf

I have heard so many people say they had cramping after transfer and got bFP so of course when I am not feeling much of anything 2dt, I am getting worried. So just curious how many had cramps before BFP and when they started and how many didn’t before BFP with <a href="https://glowing.com/glow-fertility-program">ivf</a> transfer. Thank you!