Hi ladies! So I've never used the OPKs and just ordered some off the internet. I'm on CD 4 but the tests probably won't be here until Wednesday. I'm concerned that I'll ovulate early and not know it. Right now I'm just going by CM and that seems to be pretty accurate (last month it was confirmed via ultrasound). What day do you usually start testing for ovulation? This is our second month TTC #2 and I got pregnant right away with my DD and we weren't even trying. The sooner I get pregnant, the better it is for my health so I'm pretty anxious!