If you were unsure whether you were going to make umrah or not and then due to the circumstances you managed to make one, your Ihram from masjid Aisha is sufficient.

I performed Umrah, just before a day I got my periods and my stay in Mecca was only for 5 days, hence I did not do my Umrah niyyah in flight as I was unsure of my periods would stop while I stay in mecca. But later I was able to extend stay upto 7 days so I had my gusl and did my Umrah niyyah in masjidul Aisha. Can you please tell if it was a sin as I passed meeqat without niyyah?