(Update) What would you do if you found dirty pictures in your husband phone?

Lynzie • wife, sister, daughter, mother of 1 beautiful little girl😍

So my husband is asleep and i heard his phone was dying so decided to put it on the charger. I normally dont look through his phone, but i did and i just found several pictures from thr same girl, all of them are of her naked body. Some were sent in the beginning of june, and some were earlier this month. I am so angry, i dont even know what to do. I also found text messages of some girl named Raquel and shes saying shes in the shower and she was gonna send him a pic but he wasnt texting her back. This was when he was at work today, and he texted her back "yes i am lol" but i dont think she ever sent a picture, and if she did, he deleted it. But the other pictures are saved in his gallery... I don't know what to do, i am so pissed! I am pregnant with his baby and i never ever thought i would be the girl who had to go through this. I never expected him to do this, what do i do????. Im crying right now 😭😭😭😭😭😭

UPDATE: so i woke him up and asked him who Raquel is... Turns out she is a 16 year old girl!!!!!! I was livid, started crying, we talked and talked for hours and he seems truely sorry for what he did. He tried saying at first that the pics were unsolicited and he never asked for them but then i forced it out of him and he said he did ask for them. I am still very hurt of course but i let him know if he ever does it again i am leaving his ass. I made him call the girl and tell her thatbhe is married with a baby on the way and he told her to stop sending pics. She knew he was married which really really pissed me off. I made him delete the pictures, delete her phone number and i made sure to save the number in my phone in case i have to identify it later. To the people asking if he is military, yes he is but he is no longer active duty. He was honorable discharged because he was injured. Im not sure what kind of strings i can pull with that being he isn't active duty anymore. He made it pretty clear that it was a mistake and he promised he would never do it again. So im leaving it at that.... I am still hurt and of course i will have issues trusting him from now on but im not the kind of person to throw my marriage away because of this, unless it continues to happen. Yes i am 9 weeks pregnant and this started happening right when i found out i was pregnant.