Firstly, you should know that yoga consists of the three disciplines of
Tapas -- actions to purify your body and mind
Svadhyaya -- study of the Scriptures, particularly the Mahabharata and the Ramayana
Ishvara Pranidhana -- surrender to God.
If you wish to do yoga postures or asanas, you should also know that
Hatha yoga, as distinct from Tantric yoga, reduces one's sex drive. Almost all teachers of yoga today teach variants of Hatha yoga. A healthy sex drive is essential for a happy marriage.
Asanas harm one's mind and/or body, unless performed in harmony with the three disciplines of Tapas, Svadhyaya and Ishvara Pranidhana.
Everybody should start Yoga. The most effective way of gaining the health, happiness, wealth and love that all of us seek is to do Tapas. This involves moderate exercise and activity, control of your diet and lifestyle, but fundamentally its involves helping nice people [your husband if you are a married woman] to become happy.
Helping people purifies the mind and generates enormous goodwill by God towards you. If you have done something wrong he exercises mercy. He shows you the way to do good things and to become happy.
You should wholeheartedly and without hesitation commence Yoga practice as defined in the most authoritative ancient Yoga text, the Yoga Sutras of Lord Patanjali.