Levonorgestrel - What if we you use it like over 30 time in a year?

Then your hormones are going to be all over the place, & you are unlikely to have regular periods or ovulation. Even 1 dose is a huge dose of artificial hormone for your body to deal with. It's meant for emergencies, only, & is not as reliable as regular hormonal birth control. For example, if you're ovulating, it may not work, as the only emergency contraceptive pill proven can prevent pregnancy during the 24 hours around ovulation, itself, is Ella, but even that pill is not guaranteed. I would suggest sorting out regular birth control, if you want to avoid pregnancy, too.