I recently had a miscarriage about 3 to 4 weeks ago and was told to wait one to two cycles before trying again. But I think I have already conceived again. My breasts are EXTREMELY tender and urination is very frequent. We have indeed also been having almost daily unprotected intercourse, and no period. Is this possible... and safe so soon?

You could conceive and its best to be checked out. Although sometimes after a miscarriage you could still feel the affects of pregnancy. It is best that your body have time to heal before you try again in order to be safe that you will not miscarry again. I hope the best for you!