Please advise

So I have Pcos and my husband and I have been ttc for 4 years. My last period was in January, my periods are always irregular so it’s no surprise to me I did test in February and March and both tests were negative. Last week I was really sick, nausea but no vomiting, sore breasts, mood swings, mild cramping, dizziness, fatigue so I went home and took a test.....it was Negative.....not really surprised but I had convinced myself I was pregnant. I’m still having all these symptoms 3 days later with no period.

Should I try another brand of test? It’s hard to make a dr appt right now with COVID 19. Any advise would be greatly appreciated