Pregnancy symptoms after miscarriage

Ashley
I haven't posted on here in a long time however I'm stuck on a question I can't find the answer to and hoping someone can help me. I miscarried on April 5th I was 12 weeks from then until a week ago I felt no pregnancy symptoms since the miscarriage also my hcg levels were normal again, however, my Dr told me I can try again right away since I had a natural miscarriage. I started again soon after. I still haven't had a period since but within the last week my stomach has been tight (pressure) and also I've been vomiting for the past week. Im unsure if these symptoms I'm having are from the pregnancy I lost or if it's possible that I'm pregnant again. I have taken a test and it said negative but it could still be too early to know. Glow said my period was late but I know it can take longer than 4 weeks to get a period. Anyone been through something similar and have any idea why I've been so sick recently? Thanks in advance 💖