pull out/breastfeeding and pregnancy

Sa
Ok. So we are choosing to go back to our method of pulling out...I won't use the pill and he doesn't want condoms. Plus whatever if we get pregnant fine. So my question I guess is. I'm breastfeeding, hopefully for the whole year, (11weeksPPnow) do you ladies just take random pregnancy tests to make sure you're not? Should I just take one every four-five weeks lol