<human>: I've always been a little bicurious but no more than most, but a few months into my pregnancy I noticed my libido skyrocketing. I need sex from my husband any time he was around but during the day when he was away and I was stuck at home without much to do I found myself masturbating frequently and fantasising about having sex with another girl.
After a while it went from curiosity to feeling like I absolutely had to do it otherwise I'd explode, but I knew my husband would react badly because he is quite a jealous person generally.
You know what it's like when sex goes to your head and you just lose sense of perspective? Eventually I just lost it and went on OKCupid and shyly messaged a couple of bi girls in my area. Long story short a very attractive 19 year old girl replied and she initiated the conversation to become sexual and offered to come over to our house and "show me what I've been missing".
Again long story short she came over and spent about 2 straight hours eating my pussy. I had the most intense orgasms of my life and she enjoy it too as she says she had an orgasm just from eating me.
I didn't see her again after that but I masturbated to the thought of it like a mad woman for the next week or so, I thought I might actually have to go to the Dr I was so horny all the time. But eventually it started to subside and in fact go to opposite way and for the last 3 weeks I have had no sexual urges at all.
Now I feel incredibly guilty about what I did and I feel like I have to tell my husband but at the same time I'm so worried how angry he will be, I know he has said he would never give a cheater a second chance. What should I do?

Can you summarize the given text in a few sentences?
<bot>: Earlier in my pregnancy my libido shot through the roof and I became obsessed with having sex with a girl, and I did