Missed Period due don’t know if pregnant or not?

Patient: Hello I’ve recently come of the Evra contraceptive patch and I had my normal break through bleed however I was due on my period on the 16th of July and haven’t had any bleed what so ever. I have been trying for a baby since June and me and my partner have done test and have came back negative. I rang the doctors for a second opinion and they said they can’t do anything unless I am certain im pregnant. I really need some advice?

Symptoms: Headaches Sore breasts, stomach cramps