Health Before Trying to Conceive

Hello glowfamily, I'll be seeing my first OBGYN in a week and wanted to read about your experience. I'll go over this with her too but I appreciate reading your stories as they provide me with more insight and even hope. Thank you for taking the time to read my experience and concerns and for sharing your lived experience. In 10 years, I went from 120lbs to 240lbs and currently at 200lbs, 28 years old. My next goal is 180lbs by Sept which is when we want to start trying to conceive by. I've been eating better and working out since January, been cutting back on bad foods for 2 years. I'm hoping my cholesterol has gone down. I had an undiagnosed dizzy episode that lasted 24/7 for 7 months which I felt like was stressed induced from my job. Mental health wise, I've recovered from MDD and general anxiety to a point where I feel mentally ready to start a family. I feel healthy but I have little things that make me think being pregnant may be detrimental to my health, but first my family history. My mom has numerous medical problems and the big ones are autoimmune diseases, two strokes that left her paralyzed, and MS. I got diagnosed with chronic sinusitis when I got an MRI scan for the unexplained dizzy problem 5Y ago. I also got diagnosed with PCOS 4Y ago when I didn't have a period for 6 months. Since January this year, I have had a monthly period. I stopped the mini-pill in February. I have fears that the damage in my veins are done, it could have plaque build up of 10Y and even if I make it to 180lbs, I could still have a higher risk of pre-eclampsia and gestational diabetes. I think I could have cardiovascular issues because 4-6 times a year I feel the left side of my chest pump for a minute or less. Never told doctor about it, it started last year. If I stay at 200lbs, I wonder if I should continue pushing off pregnancy until I do reach a "magic number" that allows me to have the healthiest pregnancy possible. I believe I read women gain 20-40lbs during pregnancy so I'm thinking that I need to get to a lower number first to lessen my chances of health issues. I understand that every body is unique and no matter your age or weight or PCOS status doesn't guarantee health issues, even the healthiest people can get pre-eclampsia. What is your story as it relates to being healthy prior to conceiving? What questions did you ask your OBGYN? What was your experience? Thank you again.