Does The Transfer Of Two Embryos At FET Increase Pregnancy Chances?

I am 32 years old. I have a 2 year old son who I conceived naturally after 3 months of trying. I miscarried 7 months ago at 8 1/2 weeks. I am currently attempting IVF. I have had a failed fresh and FET cycle. I am wondering if I should transfer two embryo's at my next FET and if this will increase my chances of pregnancy.