TTC stress in relationship

Carol • Mother to 2 lovely kids Liam age 9 and Penelope (Penny) age 1 , also expecting baby number 3 due September 2016 ! 💙💗
Help ladies , is anyone else's relationship feeling strained with TTC ? I feel it's all that's on my mind it's consuming me and my relationship is suffering with my OH . 
​I just need to feel I'm not alone .
​I'm at the point I don't even "want" my partner I just want his sperm lol 
​We been arguing over stupid things and I'm highly emotional I'm bipolar and my psych doctor took me off l my meds in prep for TTC . Struggling a lot