What Causes Intermittent Spotting With Bloating And Constipation?

I normally have a 28 day cycle but sometimes it is a day or two longer or shorter. This month it was 24 days. On day 12 I had pinkish mucous with blood in it. Days 13,14, 15 brownish mucous/discharge. Day 21,22,23,24 brownish and red discharge. When my period did come it lasted less than 1.5 days. I am bloated frequently and often feel constipated. I am 33 years old and my husband and i have been trying to conceive for 12 months now with no luck. My GP says that I am fine and I had an ultrasound vaginally and externally and she says everything looks fine. I recently found out that I have HPV and abnormal cells so I am scheduled for a colposcopy in February. I want a referral to a fertility clinic but she hasn t given me one yet. Please help. I feel like something is wrong but no one listens.