Yourstruely- I have not read through all of your posts so ignore me if this has already been addressed. If your baby is only 4 months old you may not be even ovulating yet. Just cuz you have a period doesn't mean your body is back to normal yet (especially with your days varying month to month). If you haven't already done it I would recommend to start charting your temps to see if/when you are ovulating and it will save you a ton of headache and heartache each month. Try fertilityfriend.com they have great resources. Best of luck!!!!