ADVICE NEEDED ASAP PLEASE!!!!!

I'm freaking out....MAJORLY!! I just went to the toilet and wiped and found a lot of red/brown mucus (sorry tmi) so I wiped again and same thing happened!! Last period was 2/3, nxt period due 3/5, currently on cd18, fertile window 13-19, last BD 16th!! I took a pic of the second time I wiped....please some1 help...I feel like I'm going to loose my mind and break down and cry!!! PLEASE HELP!!!​