There is no legal limit to the number of attempts that can be made. However, many specialists consider that if pregnancy has not been achieved by the fourth insemination, the chances of achieving pregnancy through this technique are low. In some cases, up to six attempts are recommended.
Read the full article on: How many attempts is it advisable to make in assisted reproduction? ( 29).

Rebeca Reus
BSc, MSc
Degree in Human Biology (Biochemistry) from the Pompeu Fabra University (UPF). Official Master's Degree in Clinical Analysis Laboratory from the UPF and Master’s Degree about the Theoretical Basis and Laboratory Procedures in Assisted Reproduction from the University of Valencia (UV).