Bleeding After Taking Contraceptive, Twitching Sensation In Lower Abdomen, Gas, Heart Burn, Headache, Nausea. Pregnant?

Hi. I'm 25 years old, 5'6" and 130 lbs. I've been feeling a fluttery, twitching feeling in my lower abdomen, but it's not the same feeling as gas. It mostly happens at night or when I'm laying down. I have also had gas and lately heartburn. I have felt kind of nauseous at times but have not had the urge to vomit. I have frequent headaches but that may be due to my temporomandibular joint dysfunction. Smells are bothering me more than usual, although I've always had an exceptional sense of smell. Most importantly: my boyfriend broke a condom on March 17th. I took an emergency contraceptive within 1 hour of the incident. I bled about 3-4 days later. It was a very light flow (but I'm usually light), but most of it was dark, clotted, and spotty. I have not had a period since. My last period before that was sometime in February, I'm not sure when. I have never had regular periods and have missed periods before, but never with these other symptoms. I have not taken a home pregnancy test; I can't get one without my boyfriend knowing and I don't want to scare him over nothing. Should I take the pregnancy test? Or is it still too early? Am I just seeing symptoms where there are none because I'm nervous? We also just moved, which was very stressful, and could have delayed my period.