I wouldnt worry. They'll eventually get it right ;) It took a while for my pair to get it right, lol my male had a lot of times where he even paralized himeself ;P I dont remember how long it was before I saw eggs but it was a while and I got worried too ;)
Oh just another questions I took out the female betta as soon as the male started being aggression towards her everytime she went near the nest was that a good time to do it? It seem like they were done spawning, but i'm not that sure.
Thx guys but my male bubblenest is almost gone now. I'm still observing him and saw him picking up eggs that have fallen back onto his mini size bubble nest. Does the nest usually decrease in such a large size to a small size?