Is it possible for a man to have a baby after reversing the vasectomy?

Yes it is: 50:50 perhaps, slightly better if you are young and healthy, via natural impregnantion after successful reversal. Ivf or even intracellular sperm injection might increase chances of having a baby. Good luck.

Yes: But as dr. Klauber said, it isn't guaranteed. The sooner after the vasectomy, the better the chances of a successful reversal.

Yes,: Some 30-65% of men after their vasectomy reversed will have sperms in the semen again and ready to fertilize any timely waiting egg if other fertility conditions are sound and favorable.