Momsh, I know you're worried, that's completely valid given what you've been through But please call your OB right away or go back to the hospital to check, especially after the mucus plug and all the bleeding, hindi dapat hinintay, kailangan mo ng professional check-up immediately to make sure you and baby are okay.
I had a friend na may similar signs at ang doctor lang talaga ang nakasagot sa exact timeline, kaya please don't wait on this one, ha? You're so close to your due date na, and your baby needs you safe. Sending you love, get to your doctor/hospital now!