Trying this month

So my boyfriend and me have not been trying to conceive but we haven’t been preventing to have a baby either. He’s 26, I’m 21. I’ve been off birth control for a year and nothing has ever happened with pulling out and not pulling out. I was on birth control since I was 15. And I have taken plan b a couple of times since I’ve been off. I think I’m going to actually try this month to see if something is wrong with me. It says my fertile window starts in two days but who knows my period is whack. My mom always said she has gotten pregnant easy so it’s starting to make me think the worst. I have the patch for a long time now but have not been using it, just sitting on my dresser. my doctor doesn’t know that but my body has been reacting bad to birth control (pill, IUD) so that’s why I got off in the first place. I was having contractions on my IUD and the doctor tried telling me it was a lot of eggs being released but that wasn’t the case it was physically hurting me me making me cry on the ground everyday at cos school. When I got it out it stopped. Still haven’t figured out why that happened. It sucked, it’s hard for me to want to get back on because I don’t know if it is going to make a future issue even worse for me than it is now. I don’t want to admit to my doctor because my mom would be so mad if she knew I had any idea of trying. Even tho she had me at 17 she freaks out about the idea of it being me pregnant. She found out I wasn’t using it and It gets her mad mad and she says horrible things to me like I would be a shitty mom and such. And that I would be living in her house upstairs with a baby. I laugh because my boyfriend has a house. It makes me have hard feelings tho, like if your gonna treat me like that you don’t have to see my future baby. She loves babies in general but she has always treated me in a harsh way with things. Am I over thinking how I feel about all of this? I just would like some advice from anyone that has gone through or understands anything similar with them? Xoxo