This happened to me also last night. Except for me it was right after intercourse there was bright red blood and i have little to no cramping and it went away after a few swipes now i just have very little spotting i looked online nd it said that its very normal to have blood after intercourse as long as its not heavy and to call your ob gyn or midwife if you have any concerns
many women have spotting after sex when pregnant. It's usually more like brown spotting and not true bleeding. But the cervix can be very vascular so red blood happens to. However, the cramping is a little concerning. Pregnancy is not so vulnerable that a woman can't have sex unless there is some kind of reason and that is norally when she is farther along. So, sex didn't cause a miscarriage, don't worry about that. But if you begin bleeding red blood and have pains, give your doctor a call. good luck