How many dpo to wait to test?

Caitlin • I`m a married 30 y/o high school digital integration specialist. My husband and I welcomed our rainbow baby into the world 1/2017 and are excited to prepare to expand our family in the next few months.

My husband and I have a history of early miscarriage due to low progesterone and now have a 4 year old. I had my

IUD removed in December in attempt to TTC and have had two normal cycles since. I was at my peak 1/25 or 1/25 so we bd’ed 1/22, 1/24, and 1/25. The last few days my breasts and nipples have been super sore/sensitive but I know it’s too early to be considered a pregnancy symptom or to test yet. I usually have a 32-33 day cycle with my period due 2/9. Based on my last couple cycles and according to the First Response site I can test Wednesday 2/3 (9 dpo/6 days before my next period). What have your experiences with early testing with the First Responses been? Is it safe to try to test on Wednesday or should I just make myself wait a few more days?