Am I pregnant???

Hi, I need some advice from someone who has been there…

I really want to have a baby. I’m almost 28 now, and my husband and I are ready. I went for a gyn exam recently and started taking prenatal vitamins. I went off of my birth control in October, and about two weeks later started experiencing symptoms of what I think was ovulation. So my husband and I had unprotected sex Nov. 8. Well, as soon as the next day, I started to feel like I was pregnant. I have all of these symptoms: my breasts are very tender, enlarged, and nipples erect almost all of the time, I’m exhausted and find the need to take a nap every day now, I’m irritable, my abdomen feels "full",and my sense of smell is heightened. I have had some cramping every now and then. I haven’t had any morning sickness, but my appetite has changed. I get hungry, but food kindof sicks me out and I don’t want to eat it. So anyway, I took a pregnancy test this morning and it was negative 🙁 I don’t know if it is too soon to detect yet, because it’s only been 7 days since our sex. Another complication is that two years ago I was told by my obgyn that I have polycystic ovarian syndrome, and it was going to be hard for me to get pregnant on my own. So IF I am pregnant, it would be a miracle, because we weren’t even trying really! I SO hope I am, and I’m really anxious to know, but the test this morning was negative. I need advice please….