Redness in the first month of pregnancy may be due to miscarriage, ectopic pregnancy or embryonic failure, etc. You need to go to the hospital in time to check the ultrasound, blood HCG (human chorionic gonadotropin), progesterone level, and then carry out targeted fertility preservation treatment or termination of pregnancy. If the redness is caused by preeclampsia, you usually need to lie down and rest, and take some oral medicines under the doctor’s instruction to protect the fetus, such as progesterone and dydrogesterone. If the redness is caused by ectopic pregnancy or embryonic arrest, the pregnancy sac cannot be seen through ultrasound, and hospitalization is needed to terminate the pregnancy. There may be other reasons for redness in the first month or so of pregnancy. You should go to the hospital as soon as possible to find out the cause of the bleeding, and then take appropriate treatments under the guidance of the doctor to promote the relief of the condition.