I just need to talk about it, please comment if you can..

Melissa⚓?
I'm 19 and possibly pregnant. I've missed my period and tomorrow is suppose to be the last day of my cycle. I'm trying not to freak myself out because I know it will delay my period or make me miss entirely. My SO other and I are not ready but abortion and adoption are not choices for me. I'm just getting worried. My boobs have been sore for a few days now and I'm peeing more frequently. I didn't think nothing of it the first few days because I just thought calculations with glow might be off. I have Been a day or two behind my glow calculation before but not this far behind. The more I try not to think about seems like I think about it more. Idk, any advice? Or just some feel good words? It would be much appreciated. Thank you.