It is important to know many things about your married life to ascertain the cause first. Overweight
could be a factor but it generally is not the only cause there could be other things also in combination. It has been seen that due to stress
at times people gain weight and the entire hormonal
cycle gets disturbed which may lead to any problem, so we need to rule out that too in your case. Better you see a qualified Obstetrician and a Homoeopathic physician, Homoeopathy also has good results in such cases.