Consult

I suggest you should use an effective contraception. Since it is a problem of irregular periods the best will be to go for low dose Oral Contraceptive. It will not affect breast feeding for the baby and your periods will become regular. You are having irregular periods, so it will be difficult to time intercourse as a method of Contraception. Oral Contraceptive is better.

Get ur USG to be done.....and it is quite normal during breastfeeding.....so if USG scan is normal then no need to worry ....and during this period use barrier methods so that pregnancy not occur

May I know from which place are you? Better to visit gynecologist and get sonography done.what about her hemoglobin?Need to check that too.

Breastfeeding causes irregular period , need not worry. But take proper precautions to avoid pregnancy

Do a Urine pregnancy test if you both have been sexually active post delivery. Also you need to use contraception hence forth. Cycles will regularise eventually.

Post delivery there might be irregular periods, don’t worry. Get a usg done .

Don't worry it's because of breast feeding

It's normal to be irregular till feeding