27 weeks with pink discharge..

I've had pink discharge for the third day now. I've only noticed it once a day and there was a day in between where there was none. My vagina is swollen and my inner thighs are VERY sore and have been for about a week. I haven't noticed many cramps and my lower back does not hurt.

The first day I noticed the discharge I went to the doctor and they didn't check my cervix because I wasn't having any other symptoms. They also said it's not concerning because this happens sometimes but I'm worried because this is the third day. I haven't had sex or anything so I don't know what's going on.

Has anyone experienced this?