Condom AND withdrawal?

Hey girls!

I’m 17 & I have sex with my boyfriend. I’ve acknowledged what my life would be like if I were to get pregnant and how I would approach it, but it is definitely not a good situation as I don’t have the money for it. I’m entering my senior year of high school with all college classes, in student council, and a job on the weekend. My boyfriend and I are super safe with sex, as we use condoms, he pulls out, and we check the condom after we have sex. We haven’t had any tears or rips. I’m getting on birth control once my insurance is back in place (my insurance recently switched). However, as of today I am 15 days late for my period. I have been this late before, where it has taken up to 45 days (this is the 38th day) to get my period. I am extremely worried but I don’t understand how I could even get pregnant. I know it is always possible, but we have always checked to make sure. The only thing I can think of is when I give him a blowjob and touch his penis, then touch my vagina. But that isn’t inserting, and by the time I touch my vagina my hands have already been wiped off by some clothing or the bed. I know I need to take a pregnancy test but I need to prepare myself mentally beforehand. I know it’s a life changing thing and with past experiences with depression and anxiety, I worry for myself and the (maybe) future baby. I decided when (or if) I get my period, I’m going to avoid sex until I’m in a good and stable condition. This has worries me and made me open my eyes to how unprepared I am for a baby. I’ve been experience some back pain (like sore type of pain), and some stomach aches. I’ve been getting dizzy, however it’s common for me to sometimes get dizzy and nauseous. I had period symptoms about two weeks ago with my pimples and mood swings, but sadly no sign of period. Do you guys thing there is a high chance of pregnancy for me?

Thank you so much! :)