TTC after Nuvaring

Just wondering if anyone had a similar experience - I was on the Nuvaring for 6 months, and I was never good with the "week out" part, like I would leave it out for 3 or 4 days and put a new one in. Well my boyfriend and I decided it was time to start tracking days and ttc so I took the ring out last Tuesday. Problem is, I have not had a period or even a hint of blood or any symptoms besides light cramping. We've been really active sexually for the last three/four weeks and I've taken three pregnancy tests over the course of this week which I know is probably stupid since I was still using Nuvaring (with the exception of the one I took this morning) and they are all REAL negative. I just don't know if my body is adjusting but that seems unlikely because its a low hormone BC. Has anyone else had something like this? I just want my body to readjust and be normal so I can start ttc and tracking my days accurately..