I have a Mirena IUD.
Pros: It lasts 5 years, steroids only work locally on uterus (doesn't affect mood etc), periods get lighter or might even stop after 6 months to a year (helps iron levels and spend less on sanitary products), don't need to remember pills or condoms...
Cons: Expensive if you can't get it subsidised because of low iron levels, bleeding/spotting can occur for the first 6 months-ish until things settle down...
Can't think of anything else to add at the moment. I don't stop bleeding on the pill and it makes me get really depressed (tried about 8 different ones). I don't really trust condoms as that is where Ollie sprung from

can't have injection for the same reasons as can't have the pill. And have really heavy bleeding and low iron, so copper IUD not really appropriate.