I could really use some support and advice...?

During this month, for some reason, I experienced ovulation symptoms twice. I had twinges of pain in one ovary and egg white cm around the 9th and the 18th. Both times I had unprotected with the hubby. Around the 15th I had nausea a few days in a row, worse in the mornings, and sensetive . This went away, and on the 17th and 18th I had the eggwhite cm. Around Wednesday of the following week (18th was a Saturday) I started feeling weak, getting dizzy when I got up. The symptoms have been increasing steadily since then, from the return of the mild nausea to the appearance of hot flashes, lower back ache, sensetivity to smells, and general exhaustion. The most prominent symptom was short periods of extreme muscle weakness, then achy . I've taken several tests and gotten two confusing results. Almost all of the tests said negative, but I had a faint positive on Monday morning (fmu) followed by negs until very very faint positive today. Could I be? Is it all ok?