Keep trying to feed her about once a week with smaller meals..Its amazing that she has gone that long in only lost 150 grams....If she is a little thin try feeding like I said and trust me u will not miss ovulation specially that ur snake hasn;t eaten.She will start looking a little thicker before ovi and then like what did she just eat...its that noticable....good luck..usually after the glow about a month later u should see ovulation...