Over reacting orr?

We are both 20.

So my husband was in the bathroom with the door locked and i had just woken up so i had to use the bathroom . He said was going #2 and then showering . So im like ok . So im sitting on the couch waiting and he opens the door to let me use the bathroom and he walks out . I walk in the bathroom and he never went to the bathroom. And he said he didnt go because i knocked on the door .? ( which to me just sounded like he was like jerking off or something to this girl)

I go to the bathroom and come out and look at his phone and he was on my ig on a girls profile looking at her pics? And he was scrolled down like alot . I was like wtf are you looking her up for and he said he never did . So i was like you did because you typed her in name like you sound so dumb trying to lie .

And he said that he wanted to see if her and this guy still date.

Which is clearly a lie because the most recent picture she posted was her and her boyfriend ... and the picture the clicked on was her with her ass like out ..

And last week he asked me if i was friends with her and talked to her when we had classes together ..

Am i over reacting or not ?

Im also 35 weeks pregnant so my hormones are all over the place but it pisses me off when i catch him in a lie ..