I’m In A Horrible Predicament

Recently my best friend who is single asked me to go on a trip she had won to the Cayman Islands. Our schedule brought us back the evening before my our family was to leave for our already planned vacation.
The evening before my friend and I were to fly back we went out for dinner and drinks. While we were in the lounge having drinks after dinner two attractive younger black guys asked us to dance. Being married I declined but my friend danced with one of the guys while I chatted with the other one.
As time went by my friend continued to dance then asked me to go to the restroom with her.
She told me the guys wanted to go back to our condo for a while asking if I’d ever been with a black guys. I told her no so she said this was my chance to experience it. Of course I was hesitant because I had never been unfaithful but she finally convinced me to let them go back with us.
On the way back I told her I couldn’t do it because I wasn’t on birth control. She immediately told me she had condoms so that wasn’t a problem.
Once back to the condo she and her guy quickly went to a bedroom. I was about to tell the other guy I couldn’t do anything because I wasn’t on birth control but about that time my friend came back out tossing me a condom.
Reluctantly I went to the other bedroom with the other guy getting undressed and in bed. He was very respectful and before long I was very aroused between his foreplay and the thoughts of cheating.
When the time came I opened the condom then put it on what I had always heard about black guys. I had never had one that went that deep and I immediately had a massive orgasm like none before.
The sex was incredible because of his size then when he pushed deep staying I shoved hard and could feel him throbbing as he finished and I had another amazing orgasm.
He stayed hard for several minutes which I’d never experienced causing me to have yet another orgasm.
When he finally pulled out I could immediately feel something running out of me. I asked him if the condom had broken and he said yes it had when I shoved against him as he was cumming.
I ran to the bathroom and I couldn’t believe how much he had done. I cleaned up best I could after it finally stopped coming out.
We had an early flight the next morning and as soon as I got home we had to get ready to leave the next morning for vacation. I never had an opportunity to get the morning after pill.
My husband and I were intimate a couple of times on vacation then when my period was due a week later it didn’t come. I waited a few days then took a pregnancy test and I am knocked up..
I can’t be positive who got me pregnant but considering how intense the sex was with the guy it’s more than likely it’s his.
I haven’t told my husband I’m pregnant so I’m going to see if I can arrange an abortion without him knowing. I hate having to do that but can’t take a chance on the baby being mixed and having to confess my infidelity.