am I pregnant?

Hey everyone! So I had a miscarriage a little less than 6 weeks ago. My doctor said it should take 4-6 weeks to get my period and I haven't got one yet. I've heard you can get pregnant but not sure. I've been feeling kindive sick after I eat. My breasts have been sore. I have been having lower belly pain on my left side and the middle. I've felt more sleepy than normal. My so and I have been having unprotected sex since the miscarriage. I tested a little over a week ago and it was negative. Just want your ladies thoughts please.❤️