Your symptoms are suggestive of morning sickness
and probably enlarged uterus
pressing on the baldder making you to pass urine more often. These symptoms can also occur when one is tensed about pregnancy
but since you have missed your period, I advice you to get a pregnancy test done and follow it up with a checkup with your doctor to get treated. You get a red or orange tinted vomit if retching
is more that leads to rupture of lining mucosa in the throat causing the slight bleed. Take care.