Advice please?

So I have always had regular periods until I had my iud implanted four years ago. Back in February I had my iud removed and my husband and I decided to ttc. I had a regular period in March, April, May, and June. July I didn’t have a period and I thought I was pregnant but then my period came in August. It was 4 weeks late. So we kept trying. Now I’ve missed my period in September. My period was supposed to start September 18 and my next period was supposed to start October 18th but nothing yet. All hpt are negative but I feel pregnant. I have had very odd mood swings, nausea, headaches, some vomiting, semi sore breast, cramping in my stomach, and exhaustion. Has this happened to anyone else and actually been pregnant? I scheduled a doctors appointment for Tuesday but I wanted to see if y’all have had any of the same things?