TTC!!!!!

Hey guys! My name is Shannon and I’m 24 years old my husband is 26. I have a 6 year old son from a previous person. We got pregnant last year in may ended in a miscarriage at 6 weeks and then fell pregnant on first try 2 weeks after my D&C.; That ended in a chemical pregnancy. Here it is now a year later last couple of months we tired but not too much to count was doing it on the wrong days found out I ovulate a little earlier my periods are sometimes a few days different each month and only last 2-3 days my doc says thats normal. They told me nothing was wrong with me seemed like down there after my surgery. Well this past month I got a positive opk the 10th we did it the day before that and day of and I thought omg I’m gonna fall pregnant this month. I didn’t started my period today and blood test said no. Why??? Why am I doing wrong? If I did it on the perfect time... could something be wrong with us? He don’t want to get tested right away he wants to try more but if he’s done got me pregnant two times that means nothing is wrong with him right? I’m just so down and out. Maybe I shouldn’t stress anymore and just have fun with it I want to give

My son a sibling so bad he’s getting older :/ Ann successful stories or tips??? Oh I take prenatels everyday, synthroid to keep my level at the right place (don’t really have a thyroid problem) and a baby aspirin a day.

Thank y’all!!!