Trying to conceive.

Me and my boyfriend have been trying for a couple months to have a baby. It's not long but if feels like a long time. Just recently I was supposed to start my period on the 13 and it didn't happen. I marked it down as late and glow said it would start on the 16 but nothing yet again. I have been getting hot flashes, nipples are sore when touched, cramps in the lower abdomen. Not a lot of signs and haven't been to the doctors in a few years so I'm convinced that I have something wrong with me. I have never been able to keep track of my menstrual cycles til I started this and everything that goes on with my body I feel like there is something wrong. I would go to the doctors but I don't have insurance or any money to go. I'm driving myself nuts, so I was wondering if anyone has had similar signs and ended up being pregnant or if it was something else? I need supporters, please don't be rude about this.