you SHOULD have a check-up with your OB/GYN. FIRST.
Each woman is different, when it comes to fertility... not it always being based on numerical age.
Getting a body back in shape... can take a LONG time too. How 'long' are you going to allot yourself, to get back in shape? And what is getting back in shape mean, for you???? The scale or how you feel or look??? That expectation can be never ending... too.
And then, what is it going to take, to feel 100% 'settled' in life/marriage/work/stress... before trying to have a baby? That too... is never ending per expectations....
If you want a baby.... see your OB/GYN.
I would not wait... to try and conceive.
Bear in mind, getting pregnant can take a LONG time, no matter what age you are or what lifestyle you have.
I have 2 kids.... (and had 1 miscarriage), and I conceived my 1st child... when I was over 35. I got pregnant each time, naturally. So I was lucky.
My kids are 4 years apart....
For me per my age when pregnant with my 2 children... those pregnancies were normal, no complications and they were born healthy and normal. BUT... I did have an Amniocentesis... with both those pregnancies... per my age at that time... and I chose, to do it.
My friend on the other hand, had IVF to conceive all her children. Her last child, was conceived when she was 46 years old. But it took time.....
Her kids were born normal, she had a normal pregnancy and no complications. Despite her age. She was lucky.
You CANNOT, ever, "Predict" when or if you will get pregnant. But sure, age does and can play a factor in it.
I would also suggest, that you take Pre-Natal vitamins... already. To get your body ready. My OB/GYN.... says to take Pre-natal vitamins.... even PRIOR to trying to get pregnant... and during pregnancy... AND even after the baby is born... while breastfeeding. For example.
all the best,