My friend is 16w twins from her 2nd round of IVF! It was a long, hard journey, but I’ve never seen her so much happier .She had a feeling it worked about 9 or so days after the transfer. She was a little more tired than usual and every once in a while, she’d get this weird light-headed feeling, and get a little dizzy. She probably would never have thought anything about it if I wasn’t looking for signs. The only other thing was that she usually got PMS symptoms about 5 days before her period was due (bad cramping, moody, bloating) and those symptoms never came. SHe cheated and took an HPT the night before she was due for her blood test, which I wouldn’t recommend! If it would’ve been negative, it would’ve been a long night! I know how hard it is to stay strong!