Infection or something else?

Hillary

So I'm like 11 days late for my period, I had like yellowish discharge but only saw it twice the rest of my discharge has been normal, I had some strong but not foul smelling odor that has gone away, I have been having mild cramping on and off, and while I haven't had any sex lately touching myself gives me pain. I don't even insert anything. I only touch my clit but as soon as I get ready to cum cramping starts up. I have been feeling kinda off to. Like almost nauseous but not quite and feeling like I may be starting a fever that doesn't get that high. My fiance and I have been trying to have a child for 3 years. I'm really worried that I have like pid. But its hard to make a doctors appointment unless I have no choice. So anyone can point me in the right direction? Also for some reason my breasts have been sore and feeling heavy.