Need help with university credits

ok so as fare as I know I need a minimum of 90 credits to get into my 3rd of year of uni....

This is my university's policy...

"A course unit is usually worth 15 credits. Normally, students do four units per semester, gaining 120 credits per year in total."

These are the grades I currently have:

Unit 1
Assessment 1 = B+
Assessment 2 = B+
Assessment 3 Exam = Pending
Unit 2
Assessment 1 = B+
Assessment 2 = C
Assessment 3 Exam = Pending
Unit 3
Assessment 1 = B-
Assessment 2 = D
Assessment 3 Exam = Pending
Unit 4
Assessment 1 = Pending
Assessment 2 = Pending

Using my universities grading policy can you guys work out the amount of credits I currently have? because I have no idea how to. lol

Thanks!