hallow dear,
I do not think there is any issue of concern. Since you have stated weaning food also to your child, he is drinking less amount of breast milk. Solid/semisolid food fills his stomach and provides longer satiety value; hence less requirement of breast milk.
Breast milk production depends upon the reflex from the empty milk ascinii to the pituitary which releases
Prolactin hormone to cause milk production. Since, he is drinking less milk, the ascinii are not getting completely empty; hence reduced milk production. Moreover, stress also diminishes milk production. Shatavari (arrowroot) powder is a good medicine to increase milk production.
During
lactation, there may be period of amenorrhea; when menses start, they may appear somewhat delayed.
If your baby is accepting good weaning food, you need not breastfeed him for two years exclusively. Providing whatever milk you are producing will be sufficient for him.
However, now you must be aware that since you are not exclusively
breastfeeding the child, you will have to adapt some additional
contraceptive method like birth control pills, condom or
intrauterine device. Contraceptive pills will in addition regularise your menses too.
I hope this relieves your stress.
Dr. Nishikant Shrotri