Am I wrong

Background. 20weeks pregnant been with my partner 3years and we are engaged.

Never had trust issues with him, never gives me reason to question him. We get on well however recently (since being pregnant I have definitely become more insecure and less confident- probably because I’ve gained a lot of weight very quickly and lost my sex drive). Doesn’t help that he makes ‘jokes’ about me being a lot bigger.

Anyway he was on the phone earlier talking to some female (he had her on speaker phone) she was talking about doing her garden etc. He then offered to go to her house tomorrow and help her out and she mentioned that he can’t cos of lockdown etc and he was like nah don’t worry it will be fine most things are going back to normal now. She was oh ok I haven’t got any tools though (don’t know how she was claiming to already be doing her garden with no tools) but anyhow their conversation ended with him saying I’ll see you tomorrow.

When he got of the phone I said who was that? (Innocent simple question he would of asked me) he responded by saying “A FRIEND” I was like oh ok so your friend don’t have a name - he starts laughing 😤 I walked off and said he takes the piss.... he then was like I was only joking. He then said it was his friend *Bianca!!

I was like oh who’s that then I’ve never heard of her before? He goes on to say she a really good long time friend etc. So I say well in the whole time we’ve been together you’ve never mentioned her before. The only time I heard the name *Bianca was when a girl called *Bianca kept commenting on his Instagram pictures and I asked him about her cos it looked like she liked him... at the time he said oh no don’t worry about her she like that she use to date a friend of mine and it got messy so I use to help her out and check that she was ok etc (I never thought no more about it and her name had never been mentioned since - over 2years ago).

I then said to him why you offering to help her anyway when we are meant to be painting the bathroom tomorrow and why would you want to risk Coronavirus for some girl that obviously had a thing for you. And how are you classing her as a good friend now when I’ve never known you to visit her the whole time we’ve been together??

He switched it up and was like fine I won’t go! not having this conversation with you anymore and if anyone rings me and ask to help them I will say no cos I’m not allowed!! I said I didn’t say that and he went.. you don’t have a problem when I’m at *Simons house helping him decorate at 11pm but cos it’s a female you have an issue!!!

This isn’t true because I know of a good friend of his Rachel (never met her)who he visits and helps out with decorating etc and I don’t have an issue but I’ve always known about her always heard of her at some point in our 3years but Bianca never yet now it’s important he goes and visits her!!

I’m so pissed off right now but he acting like he pissed off and i have no right to act or feel the way I do!!!

Honest advice and opinions please

Update:

So I left after to try clear my head, get some air and to calm down. I was gone 2hours when I get a text from him saying “are you trying to wind me up you’ve been gone for 2hours”. I didn’t want a conversation through text so I called him and said “ no I’m not I’ve gone to clear my head and chill out cos I’m mad, confused and feeling pretty mugged off by you right now” before I could finish my sentence he exploded! Screaming at me that I don’t trust him and I’m only acting this way because it’s a female blah blah blah. I said “calm down so I can explain exactly my thoughts and feelings etc” but he just kept shouting and cutting me off so I screamed back “ you ain’t even letting me talk your actions right now are telling me everything I need to know you’ve got no respect for me” with that he went “I’m going to my mums you obviously want space from me” he then hung up. I drive home -he gone. I didn’t bother to ring or text. I’m so mad how he switched this all up to suit him.

Anyway he texts me an hour later banging on about this all being about me not trusting him etc. I never replied. He sends another text saying why aren’t you responding to me!!!! I went bed. He came home not long after. In the morning he had the cheek to ask me if we could look online and get some baby bits. I told him I weren’t in the mood too. Haven’t spoke to him since. Now I’m laying on my bed just crying thinking about everything and anything. Just got a text from him saying he gone shooting and followed his text with a picture of him at the farm!! Obviously trying to be a smart arse and still making it all out to be a trust thing. I have no words.