two months
15 weeks = about 4 months.
52 months = 226.102314 weeks
15 weeks = 3.45 months
12 months = 52.177457 weeks
There's 4 weeks/month so 10 months.
a little after 8 and a half months
3 months and 2 weeks.
16 weeks
12 months = 1 year = 52 weeks 60 months = 5 years = 260 weeks 3 months = 52 / 4 = 13 weeks 63 months = 260 + 13 = 273 weeks (approximately) (as months are not exactly 4 weeks)
2 months and 8 weeks
28 weeks is 7 months exactly. So you are 7 months and 1 week.