Pregnancy is a mistake

My husband and I have been trying for a baby for over a year now. With two miscarriages. This month we decided to try sperm meets egg and geritol. We got into an argument this morning about him adding some girl on Facebook. Wasn’t even that big of a deal. Now he is being so damn extra that he went on to say I don’t trust him and he hopes I’m not pregnant and that a pregnancy in a broken marriage is a mistake. Where is all this coming from?? Wtf? This would be our first baby together. He has a daughter and I have a daughter. So it kind of hurts that if I got pregnant it would be a mistake but his other child isn’t one and they got pregnant from a one night stand.