not knowledgeable about fertility/ovulation

So I've always been one who was gullible enough to believe that there isn't necessarily a process to become pregnant and thought "he ejaculated in you, you're pregnant." . so when my boyfriend didn't pull out i did some reasearch but i was clearly not correct so i wasnt entirely freaking out, but I don't feel confident in my findings.. anyways the advice I am seeking is, glow is saying my most fertile days were between aug6_aug12 and this happened the 11th and also again the 16th. my period is usually quite regular and I should be starting close to the 30th of the month. with all of this info provided is there a possibility that I'm pregnant or am I just working myself up into thinking so?...thank you also I understand the app isn't going to be completely accurate so bear with me please...