Hello I Have Tons Of Questions. I Have Been Having

Hello I have tons of questions. I have been having a weird discharge that is stringy & it is only happeneing when i wipe. I am sexually active but I'm also on birthcontrol. I had sex last probabaly like 5 days ago & the bleeding started the next day. But I also missed a pill somwhere in between so I'm not sure if it's just hormonal or if I may be pregnant. I just feel if it was from missing my pill it would have only happened for a few days. This has been going on for like 4 & I'm Goin to be on my sugar pill tomorrow so I'm expecting my period in 2 to 3 days. Help!!