cm early sign of pregnancy ?

Hi ladies I may be assuming things here but just want to know if anyone noticed thick,clear,sticky mucus after ovulation and found out that they were pregnant. I have been noticing such discharge for past 7 days. This has never happened before. I m still 4 days away from my AF but my usual AF averages anywhere between 27-33 day cycle. Also with this discharge I have been observing minor cramps in my lower left abdomen. Wanting to fall pregnant, ttc baby #2. Can such cm be an early sign of pregnancy ?