Accidental Pregnancies

Can I just say I envy girls who have "accidental" pregnancies because due to my progesterone issues if I don't find out I'm pregnant by 14 DPO I will miscarry. I've already had 4 miscarriages (that I know of) and can't stand the thought of having an accidental pregnancy. I will for the rest of my life need to plan them out and be prepared with Progesterone Suppositories. I am now happily 21 weeks with a beautiful baby girl but it's bittersweet due to this week being my due date for my last miscarriage.