Trying to conceive. Little more?

No PCOD. NO thyroid problem. Everything normal for husband.Regular 28 days cycle before marriage. Married in dec 2014. Cycle changed to 25 for 3 months and then became normal. Took Siphene and myprog tablets during oct 2015(One month only. couldnt continue the treatment). From then periods alternating from 28 and 30+ days. 158 cm height and weighing 78 Kg. Working on weight reduction sincerely. Getting digestive problems often. Both of us get heat related health issues often. My pre menstraul symptoms have changed. I get nausea often. Please help us conceive a child. Last one year of marriage life was very hectic with all the family problems and too much of travel. We both are IT professionals. I have changed my lifestyle so much in order to maintain good health. Please help us conceive a child. Should i go for a regular treatment or work on health improvement little more?