Feeling worried!!!

Jackie
Well AF rocked in on the 4/12/16 
Much to my disappointment !!! 
Really thought and felt  this month I was pregnant !! 
But NOPE 
Anyway , my periods are what I think , are all over the shop! 
15/10
8/11
4/12 
I'm starting to think I don't ovulate ?? 😔😔
I'm 32 and had no trouble conceiving 3 girls now 14,10,8 a MC before the 2nd child and baby removed before last child due to no heartbeat 
It's been 8 years since I've started trying and for three months no luck? 
Should I talk to my GP? 
I also have polysisticoveries  
Just feeling really gutted!! 
Feel like time is running out for me 
Any advice is welcome xx