TTC for 3 yrs!!

Hi all, I'm 27 and new to this community. Me and my hus have been ttc since 3yrs n it's still not happening. I had mild Pcos and endometriosis and had laparoscopic surgery, found my tubes uterus everything fine, 3 IUIs and 1 <a href="">IVF</a>. Atlast I got fed up and very emotional. We put stop to everything to this hospital stuff. All those injections tests it's hard :( Now I want more energy positive vibes ... I was taking vitabiotics pregnacare. Can u suggest is it the good one or any other u suggest? I'm having regular periods.