Growing concern

Been trying to conceive for the last 6 months I haven't been using opks or anything been going by feelings and discharge but mainly been having sex every other day.

I haven't gotten pregnant in 6 months and what concerns me is that my mum conceived no problems in fact she didn't now she was pregnant with me until she was 6 months but my auntie has got pcos and endometriosis and yet still conceived 3 children. I'm growing a title bit concerned that there might be something wrong. I now it's only been 6 months but all of this has been playing on my mind considering the amount of people that just look at their partner and end up pregnant -_-.

Today though I woke up with my tummy feeling funny it feels like I've done loads of sit ups and I haven't I don't work out at all lol I had such bad acid yesterday I wanted to be sick but didn't. I am always boiling at the moment. I don't want chocolate and that is so unlike me. and my discharge is just wet no colour just wet. I still have 12 days to go before my period.

Also another thing do you have a period if you haven't ovulated?? There isn't a clear answer online