Dee- I'd count feb 11 as CD1 they say the first day of flow is your CD1. So you would be on CD 30 today. So, either you are late, or not late yet! Lol. I know, really helpful. I was the same when I tested I wasnt sure if I was late yet because my cycles were a bit long sometimes. So i actually tested BFP when I was only like 3 weeks. I cant tell you what DPO exactly, i'd say like 13-14 Dpo or around there. You'd most likely get a bfp if you are feeling symptoms of pregnancy that means your HCG would be high enough to register. Hope you test and get bfp!
Going on my trip now ladies just thought i'd jump in since I was online googling if I can take dramamine for sickness. Pray for me that I dont puke on the plane. I have a serious fear of puking in public. Lucky for me, my sickness is usually dry heaving! Lovely! Ciao~!