weight loss and periods

Ok so I have had very irregular periods since I was about 16.. I'm now 26. me and my husband have been TTC for 4 and a half years.. I have PCOS and Underactive thyroid.and I am overweight 😔 however I have been dieting and lost 2 stone. I am still overweight and still need to loose around 8 stone but I have for the first time for a very long time feel like I'm starting to get a regular period.. it's still not every month but my last 3 periods have been 3 months apart each (6th October 2017, 6th January 2018 and 5th April 2018) I'm hoping so so much that within the next 3 months I ovulate and hopefully get a positive test for the first time 😀😁 don't want to get my hopes up but I can't help but feel like things are finally looking up xx