So my period is 8 days late, but I've had spotting. I an on the Nuvaring, and this week is where I should have gotten my period. On the 14th is when I'm supposed to put a new one in. My period last for 5 days. The last time I had unprotected sex was a month ago on May 19th, in my ovulation cycle, a few days before my highest ovulation day which was the 21st of May. I've been experiencing nausea, vomiting, some sensitivity to smells or certain smells tend to bother me more that usual, cramps, spotting, and my teeth have become sensitive all of a sudden and it would be two certain ones. I have notices I've been urinating more, but I thought it was because I've been drinking water more often then usual. Some foods that I'm used to eating have become unenjoyable. I have been constantly felt tired all day for the past couple of weeks. I've also been a bit shortness of breath but idk if it is the heat and humidity messing with my asthma, but I could be sitting or laying down and be shorten of breath. I have taken pregnancy test from the nurce, she said they were little expired but still should work. I've taken two today, first one had no answer and the second one was negative.

Could I be pregnant or is it side effects from my BC?